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How Do Hackers Hack Phones and How Can I Prevent It?

10 July 2025 at 12:00

How do hackers hack phones? In several ways. But also, there are several ways you can prevent it from happening to you. The thing is that our phones are like little treasure chests. They’re loaded with plenty of personal data, and we use them to shop, bank, and take care of other personal and financial matters—all of which are of high value to identity thieves. However, you can protect yourself and your phone by knowing what to look out for and by taking a few simple steps. Let’s break it down by first understanding what phone hacking is, taking a look at some common attacks, and learning how you can prevent it.

What is phone hacking?

Phone hacking refers to any method where an unauthorized third party gains access to your smartphone and its data. This isn’t just one single technique; it covers a wide range of cybercrimes. A phone hack can happen through software vulnerabilities, like the spyware campaigns throughout the years that could monitor calls and messages. It can also occur over unsecured networks, such as a hacker intercepting your data on public Wi-Fi. Sometimes, it’s as simple as physical access, where someone installs tracking software on an unattended device. 

Types of smartphone hacks and attacks

Hackers have multiple avenues of attacking your phone. Among these common methods are using malicious apps disguised as legitimate software, exploiting the vulnerabilities of unsecure public Wi-Fi networks, or deploying sophisticated zero-click exploits that require no interaction from you at all. The most common method, however, remains social engineering, where they trick you into giving them access. Let’s further explore these common hacking techniques below.

Hacking software

Whether hackers sneak it onto your phone by physically accessing your phone or by tricking you into installing it via a phony app, a sketchy website, or a phishing attack, hacking software can create problems for you in a couple of ways:

  • Keylogging: In the hands of a hacker, keylogging works like a stalker by snooping information as you type, tap, and even talk on your phone.
  • Trojans: Trojans are malware disguised in your phone to extract important data, such as credit card account details or personal information.

Some possible signs of hacking software on your phone include:

  • A battery that drains way too quickly.
  • Your phone runs a little sluggish or gets hot.
  • Apps quit suddenly or your phone shuts off and turns back on.
  • You see unrecognized data, text, or other charges on your bill.

In all, hacking software can eat up system resources, create conflicts with other apps, and use your data or internet connection to pass your personal information into the hands of hackers.

Phishing attacks

This classic form of attack has been leveled at our computers for years. Phishing is where hackers impersonate a company or trusted individual to get access to your accounts or personal info or both. These attacks take many forms such as emails, texts, instant messages, and so forth, some of which can look really legitimate. Common to them are links to bogus sites that attempt to trick you into handing over personal info or that install malware to wreak havoc on your device or likewise steal information. Learning to spot a phishing attack is one way to keep yourself from falling victim to one.

Bluetooth hacking

Professional hackers can use dedicated technologies that search for vulnerable mobile devices with an open Bluetooth connection. Hackers can pull off these attacks when they are within range of your phone, up to 30 feet away, usually in a populated area. When hackers make a Bluetooth connection to your phone, they might access your data and info, yet that data and info must be downloaded while the phone is within range. This is a more sophisticated attack given the effort and technology involved.

SIM card swapping

In August of 2019, then CEO of Twitter had his phone hacked by SIM card swapping scam. In this type of scam, a hacker contacts your phone provider, pretends to be you, then asks for a replacement SIM card. Once the provider sends the new SIM to the hacker, the old SIM card is deactivated, and your phone number will be effectively stolen. This enables the hacker to take control of your phone calls, messages, among others. The task of impersonating someone else seems difficult, yet it happened to the CEO of a major tech company, underscoring the importance of protecting your personal info and identity online to prevent hackers from pulling off this and other crimes.

Vishing or voice phishing

While a phone call itself cannot typically install malware on your device, it is a primary tool for social engineering, known as vishing or voice phishing. A hacker might call, impersonating your bank or tech support company, and trick you into revealing sensitive information like passwords or financial details. They might also try to convince you to install a malicious app. Another common tactic is the “one-ring” scam, where they hang up hoping you’ll call back a premium-rate number. To stay safe, be wary of unsolicited calls, never provide personal data, block suspicious numbers, and check that your call forwarding isn’t enabled.

Low-power mode hacks

Generally, a phone that is powered off is a difficult target for remote hackers. However, modern smartphones aren’t always truly off. Features like Apple’s Find My network can operate in a low-power mode, keeping certain radios active. Furthermore, if a device has been previously compromised with sophisticated firmware-level malware, it could activate upon startup. The more common risk involves data that was already stolen before the phone was turned off or if the device is physically stolen. While it’s an uncommon scenario, the only sure way to take a device offline and completely sever all power is by removing the battery, where possible.

Camera hacks

Hacking a phone’s camera is referred to as camfecting, usually done through malware or spyware hidden within a rogue application. Once installed, these apps can gain unauthorized permission to access your camera and record video or capture images without your knowledge. Occasionally, vulnerabilities in a phone’s operating system (OS) have been discovered that could allow for this, though these are rare and usually patched quickly. Protect yourself by regularly reviewing app permissions in your phone’s settings—for both iOS and Android—and revoking camera access for any app that doesn’t absolutely need it. Always keep your OS and apps updated to the latest versions.

Android vs. iPhone: Which is harder to hack?

This is a long-standing debate with no simple answer. iPhones are generally considered more secure due to Apple’s walled garden approach: a closed ecosystem, a strict vetting process for the App Store, and timely security updates for all supported devices. Android’s open-source nature offers more flexibility but also creates a more fragmented ecosystem, where security updates can be delayed depending on the device manufacturer. However, both platforms use powerful security features like application sandboxing. 

The most important factor is not the brand but your behavior. A user who practices good digital hygiene—using strong passwords, avoiding suspicious links, and vetting apps—is well-protected on any platform.

Signs your phone has been hacked

Detecting a phone hack early can save you from significant trouble. Watch for key red flags: your battery draining much faster than usual, unexpected spikes in your mobile data usage, a persistently hot device even when idle, or a sudden barrage of pop-up ads. You might also notice apps you don’t remember installing or find that your phone is running unusually slow. To check, go into your settings to review your battery and data usage reports for any strange activity. The most effective step you can take is to install a comprehensive security app, like McAfee® Mobile Security, to run an immediate scan and detect any threats.

How to remove a hacker from your phone

Discovering that your phone has been hacked can be alarming, but acting quickly can help you regain control and protect your personal information. Here are the urgent steps to take so you can remove the hacker, secure your accounts, and prevent future intrusions.

  1. Disconnect immediately: Turn on Airplane Mode to cut off the hacker’s connection to your device via Wi-Fi and cellular data.
  2. Run an antivirus scan: Use a reputable mobile security app to scan your phone, and identify and remove malicious software.
  3. Review and remove apps: Manually check your installed applications. Delete any you don’t recognize or that look suspicious. While you’re there, review app permissions and revoke access for any apps that seem overly intrusive.
  4. Change your passwords: Using a separate, secure device, change the passwords for your critical accounts immediately—especially for your email, banking, and social media.
  5. Perform a factory reset: For persistent infections, a factory reset is the most effective solution. This will wipe all data from your phone, so ensure you have a clean backup—the time before you suspected a hack—to restore from.
  6. Monitor your accounts: After securing your device, keep a close eye on your financial and online accounts for any unauthorized activity.

10 tips to prevent your phone from being hacked

While there are several ways a hacker can get into your phone and steal personal and critical information, here are a few tips to keep that from happening:

  1. Use comprehensive security software. We’ve gotten into the good habit of using this on our desktop and laptop computers. Our phones? Not so much. Installing security software on your smartphone gives you a first line of defense against attacks, plus additional security features.
  2. Update your phone OS and its apps. Keeping your operating system current is the primary way to protect your phone. Updates fix vulnerabilities that cybercriminals rely on to pull off their malware-based attacks. Additionally, those updates can help keep your phone and apps running smoothly while introducing new, helpful features.
  3. Stay safe on the go with a VPN. One way that crooks hack their way into your phone is via public Wi-Fi at airports, hotels, and even libraries. This means your activities are exposed to others on the network—your bank details, password, all of it. To make a public network private and protect your data, use a virtual private network.
  4. Use a password manager. Strong, unique passwords offer another primary line of defense, but juggling dozens of passwords can be a task, thus the temptation to use and reuse simpler passwords. Hackers love this because one password can be the key to several accounts. Instead, try a password manager that can create those passwords for you and safely store them as well. Comprehensive security software will include one.
  5. Avoid public charging stations. Charging your device at a public station seems so convenient. However, some hackers have been known to juice jack by installing malware into the charging station, while stealing your passwords and personal info. Instead, bring a portable power pack that you can charge ahead of time. They’re pretty inexpensive and easy to find.
  6. Keep your eyes on your phone. Many hacks happen simply because a phone falls into the wrong hands. This is a good case for password or PIN protecting your phone, as well as turning on device tracking to locate your phone or wipe it clean remotely if you need to. Apple and Google provide their users with a step-by-step guide for remotely wiping devices.
  7. Encrypt your phone. Encrypting your cell phone can save you from being hacked and can protect your calls, messages, and critical information. To check if your iPhone is encrypted, go into Touch ID & Passcode, scroll to the bottom, and see if data protection is enabled. Typically, this is automatic if you have a passcode enabled. Android users have automatic encryption depending on the type of phone.
  8. Lock your SIM card. Just as you can lock your phone, you can also lock the SIM card that is used to identify you, the owner, and to connect you to your cellular network. Locking it keeps your phone from being used on any other network than yours. If you own an iPhone, you can lock it by following these simple directions. For other platforms, check out the manufacturer’s website.
  9. Turn off your Wi-Fi and Bluetooth when not in use. Think of it as closing an open door. As many hacks rely on both Wi-Fi and Bluetooth to be performed, switching off both can protect your privacy in many situations. You can easily turn off both from your settings by simply pulling down the menu on your home screen.
  10. Steer clear of unvetted third-party app stores. Google Play and Apple’s App Store have measures in place to review and vet apps, and ensure that they are safe and secure. Third-party sites may not have that process and might intentionally host malicious apps. While some cybercriminals have found ways to circumvent Google and Apple’s review process, downloading a safe app from them is far greater than anywhere else.

Final thoughts

Your smartphone is central to your life, so protecting it is essential. Ultimately, your proactive security habits are your strongest defense against mobile hacking. Make a habit of keeping your operating system and apps updated, be cautious about the links you click and the networks you join, and use a comprehensive security solution like McAfee® Mobile Security.

By staying vigilant and informed, you can enjoy all the benefits of your mobile device with confidence and peace of mind. Stay tuned to McAfee for the latest on how to protect your digital world from emerging threats.

The post How Do Hackers Hack Phones and How Can I Prevent It? appeared first on McAfee Blog.

A Guide to Remove Malware From Your iPhone

By: McAfee
6 July 2025 at 12:25

Malicious software, also called malware, refers to any program or code engineered to harm or exploit computer systems, networks and devices. It affects your phone’s functionality, especially if you jailbreak your device—that is, opening your iOS to additional features, apps, and themes. 

The risks associated with a malware infection can range from poor device performance to stolen data. Cybercriminals typically use it to extract data—from financial data and healthcare records to emails and passwords—that they can leverage over victims for financial gain. 

Thanks to their closed ecosystem, built-in security features, and strict policies on third-party apps, Apple devices tend to be generally resilient against malware infections. It’s important to note, however, that they’re not completely without vulnerabilities.

Read on to learn how you can detect malware on your iPhone and how to remove these infections so you can get back to enjoying your digital activities.

What is iPhone malware?

While traditional self-replicating viruses are rare on iPhones, malware is a genuine threat for Apple devices. Malware typically enters through links in deceptive texts or emails or through downloaded, unvetted apps rather than system-wide infection. These are some types of malware that could infect your iPhone:

  • Adware: Once embedded into your phone, adware collects your personal data and learns browsing habits to determine what kinds of ads can be targeted to you. It then bombards your screen with pop-up ads.
  • Ransomware: This type of malware encrypts your files or locks you out of your computer, making the data inaccessible. The attackers then demand a ransom before releasing your encrypted files or systems.
  • Spyware: This malicious software sits on your device, tracks your online activities, then sends it to a central server controlled by third-party internet service providers, hackers, and scammers, who then exploit this information to their advantage.
  • Trojans: Disguised as a real, operational program, this type of malware steals passwords, PINs, credit card data, and other private information.

Understanding Apple’s built-in security layers

To keep you safe against malware and other threats, Apple engineers the iPhone with multiple security layers, including:

  • Secure Enclave: This hardware feature is a dedicated secure subsystem in Apple devices that protects your most sensitive data, such as Face ID or Touch ID information in a separate, fortified processor. 
  • Sandboxing: This process serves as a digital wall around each app, preventing it from meddling with other apps or accessing your core iOS system files. A downloaded app is first isolated or sandboxed to prevent it from accessing data in your iPhone or modifying the operating system. 
  • App Store review: Apple also enforces a process to strictly vet apps for malicious code, and it delivers rapid security patches via regular iOS updates to fix vulnerabilities quickly. 

Together, these features create a highly secure environment for iPhones. However, this robust shield does not eliminate all risks, as threats can still bypass these defenses through phishing scams or by tricking a user into installing a malicious configuration profile.

6 signs of malware on your iPhone and quick actions

If your iPhone is exhibiting these odd activities listed below, a manual scan is your first point of order. These quick actions are free to do as they are already integrated into your device.

  • Sudden battery drain: Your battery dies much faster than it should because malware is secretly running in the background. It could mean malware is running in the background and consuming a significant amount of power. To make sure that no such apps are installed on your phone, head over to Settings > Battery and select a period of your choice. Uninstall any unfamiliar apps that stand out.
  • Unexpected data spikes: You notice a sudden jump in your data usage, which could mean malware is sending information from your phone to a hacker’s server. Keep an eye on it if you suspect malware is in your system. To do so, go to Settings > Mobile Data and check if your data usage is higher than usual.
  • Constant pop-ups: Occasionally running into pop-up ads is inevitable when browsing the internet. However, your phone might be infected with adware if you’re getting them with alarming frequency. Never click the pop-ups. Instead, go to Settings > Safari and tap Clear History and Website Data. This can remove adware and reset your browser.
  • Overheating device: Your iPhone feels unusually hot, even when idle, as malicious software can cause the processor to work overtime. Restart your phone to terminate any hidden processes causing the issue.
  • Mysterious apps appear: You discover apps on your iPhone that you are certain you never downloaded. Take some time to swipe through all of your apps and closely inspect or uninstall any that you don’t recognize or remember downloading. 
  • Sluggish performance: Your phone becomes slow, apps crash unexpectedly, or the entire system freezes for no reason. A simple restart can often clear up performance issues and improve responsiveness.

The disadvantage of doing a manual scan is that it requires effort. In addition, it does not detect sophisticated malware, and only identifies symptoms rather than root causes.

Scan your iPhone for malware

If your iPhone persistently exhibits any of the red flags above despite your quick actions, you may have to investigate using a third-party security app to find the threats that manual checks don’t catch. 

Compared with manual or built-in scans, third-party solutions like McAfee Mobile Security offer automated, comprehensive malware scans by detecting a wider range of threats before they enter your digital space. While available at a premium, third-party security suites offer great value as they include full-scale protection that includes a safe browsing feature to protect your digital life and a virtual private network (VPN) for a more secure internet connection. 

How to remove malware from your iPhone

If the scan confirms the presence of malware on your iPhone, don’t worry. There’s still time to protect yourself and your data. Below is an action plan you can follow to remove malware from your device.

Update your iOS, if applicable

In many cases, hackers exploit outdated versions of iOS to launch malware attacks. If you don’t have the latest version of your operating system, it’s a good idea to update your iOS immediately to close this potential vulnerability. To do this, go to Settings > General > Software Update and follow the instructions to update your iPhone.

Restart your device

It might sound simple, but restarting your device can fix certain issues. The system will restart on its own when updating the iOS. If you already have the latest version, restart your iPhone now.

Clear your iPhone browsing history and data

If updating the iOS and restarting your device didn’t fix the issue, try clearing your phone’s browsing history and data. If you’re using Safari, go to Settings > Clear History and Website Data > Clear History and Data. Keep in mind that the process is similar for Google Chrome and most other popular web browsers.

Remove any suspicious apps

Malicious software, such as spyware and ransomware, often end up on phones by masquerading as legitimate apps. To err on the side of caution, delete any apps that you don’t remember downloading or installing.

Restore your iPhone

The option to restore to a previous backup is one of the most valuable features found on the iPhone and iPad. This allows you to restore your device to an iCloud backup version that was made before the malware infection. Go to Settings > General > Transfer or Reset iPhone > Erase All Content and Settings > Restore from iCloud Backup.

Factory reset your iPhone

A factory reset should be your last resort when other removal methods have failed, as it is a complete data wipe. That means it will erase all content and settings, including any malicious apps, profiles, or files, returning the software to its original, out-of-the-box state. That’s why it’s crucial to back up your essential data such as photos and contacts first. Also, remember to restore to an iCloud backup version *before* the malware infection to avoid reintroducing the infection. For the highest level of security, set the iPhone up as new and manually redownload trusted apps from the App Store. When you are ready to reset, go to Settings > General > Transfer or Reset iPhone > Erase All Content and Settings > Set Up as New iPhone.

How to detect spyware on your iPhone

Spyware is designed to be sneaky, but it leaves subtle traces. Pay attention to your iPhone’s behavior, such as the camera or microphone unexpectedly activating as indicated by a green or orange dot in the status bar, sudden battery drain, or your device overheating for no reason. Another major red flag is a spike in data usage when you aren’t actively using your phone.

For a deeper look, do this 5-minute check to see which apps have accessed your data, camera, and microphone. Look for any activity that seems suspicious or that you don’t recall authorizing. 

5-minute spyware check:

  • Scan for unknown apps: Scroll through your home screens and App Library for any apps you didn’t install.
  • Review the App Privacy Report: Check for recent sensor or network activity from apps that shouldn’t be active. Go to Settings > Privacy & Security > App Privacy Report
  • Check for unusual profiles: Go to Settings > General > VPN & Device Management. Remove any profiles you don’t recognize.
  • Look at battery usage: In Settings > Battery, look for unfamiliar apps consuming significant power.

Removing spyware from your iPhone

If you suspect your iPhone has been compromised, it’s important to act quickly. Here’s a step-by-step process to remove it, restore your privacy, and prevent future threats.

  1. Backup your essential data: Before making any changes, back up your photos, contacts, and other important files. Ensure you back up to a trusted location like iCloud or your computer.
  2. Update to the latest iOS: Apple frequently releases security patches. Go to Settings > General > Software Update and install any available updates to close vulnerabilities that spyware might exploit.
  3. Delete suspicious apps and profiles: Remove any apps you don’t recognize. Additionally, go to Settings > General > VPN & Device Management and delete any configuration profiles that you did not install yourself.
  4. Change your passwords: Once your device is clean, immediately change the passwords for your critical accounts, including your Apple ID, email, and banking apps.
  5. Enable two-factor authentication (2FA): For an added layer of security, enable 2FA on all important accounts, to make it much harder for anyone to gain unauthorized access, even if they have your password.
  6. Run a mobile security scan: The most reliable way to detect spyware is with a trusted mobile security app that can perform a comprehensive system scan to help flag any remaining malicious files or settings.
  7. When to escalate: If you suspect you are a victim of stalking or that your device was compromised for illegal activities, contact Apple Support for assistance and consider reporting the incident to law enforcement.

Don’t engage with fake virus pop-up scams

A common tactic used by scammers is the fake virus pop-up. These alarming messages appear while you are browsing, often using logos from Apple or other trusted companies, and claim your iPhone is infected. Their goal is to create panic, urging you to click a link, download a fake app, or call a fraudulent support number. Never interact with these pop-ups. Here’s a quick response plan when dealing with fake virus pop-up ads: 

  • The correct action is to close the Safari tab or the entire browser immediately. 
  • To be safe, clear your browsing data by going to Settings > Safari > Clear History and Website Data. This action removes any lingering scripts from the malicious page. 
  • You can also report phishing pages to help protect others.

Never enter personal information, passwords, or payment details on a page that appears from a pop-up ad.

Avoid malware from the start

The best way to protect your iOS device is to avoid malware in the first place. Follow these security measures to safeguard your device:

  • If you receive unexpected or unsolicited emails or texts, think before you tap the suspicious links to avoid phishing traps.
  • Stick only with apps from the Apple App store. Avoid installing apps from unvetted third-party stores.
  • Protect your device’s built-in defenses by avoiding the temptation to jailbreak your iPhone as this will remove most Apple security features.
  • Enable automatic updates of iOS and iTunes to stay in line with Apple’s security updates and bug fixes.
  • Back up your iPhone data regularly to iCloud or a computer so you can always restore it.
  • Avoid engaging with suspicious text messages on iMessage, as hackers use them to spread phishing scams.
  • Enable two-factor authentication on your Apple ID for a powerful extra layer of security.
  • Routinely review your app permissions to ensure they only have access to necessary data.
  • Install a trusted security app, such as McAfee Mobile Security, for proactive scanning and web protection.

FAQs about iPhone malware

Can my iPhone get a virus from opening an email?
Simply opening an email is very unlikely to infect your iPhone. However, clicking a malicious link or downloading an attachment from a phishing email can lead you to a harmful website or trick you into compromising your information. It’s the action you take, not opening the email itself, that creates the risk.

How do I know if a virus warning is real or fake?
Any pop-up in your browser that claims your iPhone has a virus is fake. Apple does not send notifications like this. These are scare tactics designed to trick you into clicking a link or calling a fake support number. The safest response is to close the browser tab and clear your browsing data.

Does my iPhone really need antivirus software?

It’s a misconception that iPhones are immune to all viruses. While Apple’s built-in security provides a strong defense, it doesn’t offer complete protection. Cybercriminals are increasingly using phishing, smishing, AI voice cloning, deepfake videos and other social engineering methods to target iPhone users. A comprehensive security app provides layered protection beyond the iOS integrated security. Think of it as adding a professional security guard to already-strong walls.

What is the best way to check my iPhone for a virus or malware for free?
You can perform manual checks for free by looking for suspicious apps, checking for unusual battery drain and data usage, and reviewing your App Privacy Report. While helpful for spotting obvious issues, these manual checks aren’t foolproof. A dedicated security app offers a more reliable and thorough analysis.

Can an iPhone get malware without jailbreaking it?
Yes. While jailbreaking significantly increases the risk, malware can still infect a non-jailbroken iPhone. This typically happens through sophisticated phishing attacks, installing malicious configuration profiles from untrusted sources, or, in very rare cases, by exploiting an unknown vulnerability in iOS, known as a “zero-day” attack.

Is an iPhone malware scan truly necessary?
Given the value of the personal data on our phones, a regular malware scan provides significant peace of mind. A reputable security app can identify vulnerabilities you might miss, such as outdated software or risky system settings, helping you maintain a strong security posture.

Final thoughts on iPhone malware protection

Keeping your iPhone secure from malware is an achievable goal that puts you in control of your digital safety. By combining smart habits with powerful security tools, you can confidently protect your personal information from emerging threats. 

McAfee is committed to empowering you with the resources and protection needed to navigate the online world safely. McAfee Mobile Security provides full protection against various types of malware targeting the Apple ecosystem. With safe browsing features, a secure VPN, and antivirus software, McAfee Security for iOS delivers protection against emerging threats, so you can continue to use your iPhone with peace of mind. Download the McAfee Mobile Security app today and get all-in-one protection.

The post A Guide to Remove Malware From Your iPhone appeared first on McAfee Blog.

7 Signs Your Phone Is Infected With a Virus

By: McAfee
25 May 2025 at 02:04

We use our smartphones for everything under the sun, from work-related communication to online shopping, banking transactions, and social media. For this reason, our phones store a lot of personal data, including contacts, account details, and bank account logins

High online usage also makes your devices vulnerable to viruses, a type of malware that replicate themselves and spread throughout the entire system. They can affect your phone’s performance or, worse, compromise your sensitive information so that hackers can benefit monetarily.

In this article, we will give you a rundown of viruses that can infect your phone and how you can identify and eliminate them. We will also provide some tips for protecting your phone from viruses in the first place.

Phone Virus on iOS vs Android

iPhones and Android devices run on different operating systems, hence differences in how they resist viruses and how these affect each system.

While iOS hacks can still happen, Apple’s operating system is reputed to be highly resistant to viruses because of its design. By restricting interactions between apps, Apple’s operating system limits the movement of a virus across the device. However, if you jailbreak your iPhone or iPad to unlock other capabilities or install third-party apps, then the security restrictions set by Apple’s OS won’t work. This exposes your iPhone and you to vulnerabilities that cybercriminals can exploit. 

Android phones, while also designed with cybersecurity in mind, rely on open-source code, making them an easier target for hackers. Additionally, giving users the capability to install third-party apps from alternative app stores, such as the Amazon or Samsung Galaxy app stores, makes Android devices open to viruses. 

Types of phone viruses

Cybercriminals today are sophisticated and can launch a variety of cyberattacks on your smartphone. Some viruses that can infect your phone include: 

  • Malware: Malware encompasses programs that steal your information or take control of your device without your permission.
  • Adware: These are ads that can access information on your device if you click on them.
  • Ransomware: These prevent you from accessing your phone again unless you pay a ransom to the hacker. The hacker may also use your personal data, such as pictures, as blackmail.
  • Spyware: This tracks your browsing activity, then steals your data or affects your phone’s performance.
  • Trojan: Aptly named, this type of virus hides inside an app to take control of or affect your phone and data.

Common ways phones get infected

Ultimately, contracting a virus on your phone or computer comes down to your browsing and downloading habits. These are the most common ways it could happen:

  • Clicking on links or attachments from unverified sources, which are mostly distributed through emails and text messages
  • Clicking on seemingly innocent ads that take you to an unsecured webpage or download mobile malware to your device
  • Visiting questionable websites, often ignoring security warnings
  • Downloading malicious apps from unverified sources, usually outside the Apple App Store or Google Play Store
  • Connecting to an unsecured internet connection, like public wi-fi

7 signs your phone has a virus

Now that you know how your phone could be infected by a virus, look out for these seven signs that occur when malicious software is present:

1. You see random pop-up ads or new apps

Most pop-up ads don’t carry viruses but are only used as marketing tools. However, if you find yourself closing pop-up ads more often than usual, it might indicate a virus on your phone. These ads might be coming from apps in your library that you didn’t install. In this case, uninstall them immediately as they tend to carry malware that’s activated when the app is opened or used.

2. Your device feels physically hot

When you accidentally download apps that contain malware, your device has to work harder to continue functioning. Since your phone isn’t built to support malware, there is a good chance it will overheat.

3. Random messages are sent to your contacts

If your contacts receive unsolicited scam emails or messages on social media from your account, especially those containing suspicious links, a virus may have accessed your contact list. It’s best to let all the recipients know that your phone has been hacked so that they don’t download any malware themselves or forward those links to anybody else.

4. The device responds slowly

An unusually slow-performing device is a hint of suspicious activity on your phone. The device may be slowing down because it is working harder to support the downloaded virus. Alternatively, unfamiliar apps might be taking up storage space and running background tasks, causing your phone to run more slowly.

5. You find fraudulent charges on your accounts

Are you finding credit card transactions in your banking statements that you don’t recognize? It could be an unfamiliar app or malware making purchases through your account without your knowledge.

6. The phone uses excess data

A sudden rise in your data usage or phone bill can be suspicious. A virus might be running background processes or using your internet connection to transfer data out of your device for malicious purposes.

7. Your battery drains quickly

An unusually quick battery drain may also cause concern. Your phone will be trying to meet the energy requirements of the virus, so this problem is likely to persist for as long as the virus is on the device.

How to Detect and Remove a Virus on Your Phone

You may have an inkling that a virus resides in your phone, but the only way to be sure is to check. An easy way to do this is by downloading a trustworthy antivirus app that will prevent suspicious apps from attaching themselves to your phone and secure any public connections you might be using.

Another way to check your phone is to follow these step-by-step processes, depending on the type of phone you use:

How to check your iPhone for a virus

  1. Check battery usage: Go to Settings > Battery. Scroll down to see the battery usage by app. If you see an app you don’t recognize or an app with unusually high usage, it could be a sign of malicious activity.
  2. Review app list and storage: Carefully examine all the apps installed on your phone. If you find an app that you don’t remember downloading, it could be malware. Uninstall it immediately. Also, check Settings > General > iPhone Storage for any strange or unexpected data usage by apps.
  3. Monitor data consumption: Navigate to Settings > Cellular. Review the data usage for each app. A virus on your phone can consume large amounts of data by running in the background and communicating with a hacker’s server.
  4. Look for jailbreak evidence: If you didn’t jailbreak your phone but see apps like Cydia or Sileo, it’s a major red flag. Someone with physical access to your phone may have jailbroken it to install spyware or other malware.
  5. Run an iOS security app: For peace of mind and a thorough check, use a reputable security application to help you scan for system threats, secure your wi-fi connection, and help identify risks that are not immediately obvious.

How to check for a virus on an Android device

  1. Utilize Google Play Protect: This Android’s built-in malware protection is your first line of defense to know if your phone has a virus. Open the Google Play Store app, tap on your profile icon, and select Play Protect. Tap “Scan” to check your apps for harmful behavior.
  2. Boot into safe mode: If your phone is lagging or crashing, restarting in Safe Mode can help. Press and hold the power button, then tap and hold the “Power off” option until the “Reboot to safe mode” prompt appears. In Safe Mode, all third-party apps are disabled. If the issues disappear, a recently installed app is likely the culprit. You can then uninstall suspicious apps one by one.
  3. Review app permissions: Go to Settings > Apps and check the permissions for each app. Is a simple game asking for access to your contacts and microphone? That’s a red flag. Revoke any permissions that seem unnecessary for an app’s function. This helps prevent spyware from collecting your data.
  4. Install a trusted antivirus app: For the most comprehensive protection, install a top-rated security app like McAfee Mobile Security. Running a full scan will detect and help you quarantine or remove malicious files and apps that built-in tools might miss, providing a clear path on how to clean your phone from a virus.

How to remove a virus from your device

Once you have determined that a virus is present on your iPhone or Android device, there are several things you can do. 

  • Download antivirus software or a mobile security app to help you locate existing viruses and malware. By identifying the exact problem, you know what to get rid of and how to protect your device in the future. 
  • Do a thorough sweep of your app library to make sure that whatever apps are on your phone were downloaded by you. Delete any apps that you’re unfamiliar with.
  • To protect your information, delete any sensitive text messages and clear history regularly from your mobile browsers. Empty the cache in your browsers and apps.
  • In some instances, you may need to reboot your smartphone to its original factory settings. This can lead to data loss, so be sure to back up important documents to the cloud.
  • Create strong passwords for all your accounts after cleaning up your phone, and protect them using a password manager. This tool uses the most robust encryption algorithms so only you have access to your information.

7 tips to protect your phone from viruses

Caring for your phone is a vital practice to protect your information. Follow these tips to stay safe online and help reduce the risk of your phone getting a virus. 

  • Only download apps from a trusted source, i.e., the app store or other verified stores. Before installing, read the app reviews and understand how the app intends to use your data.
  • Set up strong, unique passwords for your accounts instead of reusing the same or similar passwords. This prevents a domino effect in case one of the accounts is compromised.
  • Think twice before you click on a link. If a link looks suspicious, trust your gut! Avoid clicking on it until you have more information about its trustworthiness. These links can be found across messaging services and are often part of phishing scams. 
  • Clear your cache periodically. Scan your browsing history to get rid of any links that seem suspicious. 
  • Avoid saving login information on your browsers and log out when you’re not using a particular browser. Although this is a convenience trade-off, it’s harder for malware to access accounts you’re not logged into during the attack.
  • Update your operating system and apps frequently. Regular updates build upon previous security features. Sometimes, these updates contain security patches created in response to specific threats in prior versions. 
  • Don’t give an app all the permissions it asks for. Instead, you can choose to give it access to certain data only when required. Minimizing an application’s access to your information keeps you safer.
  • Avoid using unsecure internet connections such as public wi-fi. If it is unavoidable, it is ideal to have a secure virtual private network that encrypts your data to make unsecured networks safe to use.

Final Thoughts

You have come to rely heavily on your smartphones for many online activities and storage of much of your personal data, including contacts, account details, and bank account logins. This puts your devices at high risk of being infected by viruses that impact not just your phone’s performance but also of being compromised by cybercriminals.

To help you protect your device and personal information, the award-winning McAfee Mobile Security solution regularly scans for threats transmitted through suspicious links in text messages, emails, or downloads, and blocks them in real time. McAfee Mobile Security is a reputable security application that filters risky emails and phishing attempts, so your inbox stays secure while providing a secure virtual private network. It is also capable of spotting deepfake videos, so you can stay ahead of misinformation. With McAfee, you can rest easy knowing your mobile phone is protected from the latest cyberthreats.

The post 7 Signs Your Phone Is Infected With a Virus appeared first on McAfee Blog.

How to Scan for Viruses and Confirm Your Device Is Safe

By: McAfee
19 May 2025 at 10:23

New online threats emerge every day, putting our personal information, money and devices at risk. In its 2024 Internet Crime Report, the Federal Bureau of Investigation reports that 859,532 complaints of suspected internet crime—including ransomware, viruses and malware, data breaches, denials of service, and other forms of cyberattack—resulted in losses of over $16 billion—a 33% increase from 2023.

That’s why it is essential to stay ahead of these threats. One way to combat these is by conducting virus scans using proven software tools that constantly monitor and check your devices while safeguarding your sensitive information. In this article, we’ll go through everything you need to know to run a scan effectively to keep your computers, phones and tablets in tip-top shape.

What does a virus scan do?

Whether you think you might have a virus on your computer or devices or just want to keep them running smoothly, it’s easy to do a virus scan.

Each antivirus program works a little differently, but in general the software will look for known malware with specific characteristics, as well as their variants that have a similar code base. Some antivirus software even checks for suspicious behavior. If the software comes across a dangerous program or piece of code, the antivirus software removes it. In some cases, a dangerous program can be replaced with a clean one from the manufacturer.

Unmistakeable signs of a virus in your device

Before doing a virus scan, it is useful to know the telltale signs of viral presence in your device. Is your device acting sluggish or having a hard time booting up? Have you noticed missing files or a lack of storage space? Have you noticed emails or messages sent from your account that you did not write? Perhaps you’ve noticed changes to your browser homepage or settings? Maybe you’re seeing unexpected pop-up windows, or experiencing crashes and other program errors. These are just some signs that your device may have a virus, but don’t get too worried yet because many of these issues can be resolved with a virus scan.

Are free virus scanner tools safe and sufficient?

Free virus scanner tools, both in web-based and downloadable formats, offer a convenient way to perform a one-time check for malware. They are most useful when you need a second opinion or are asking yourself, “do I have a virus?” after noticing something suspect.

However, it’s critical to be cautious. For one, cybercriminals often create fake “free” virus checker tools that are actually malware in disguise. If you opt for free scanning tools, it is best to lean on highly reputable cybersecurity brands. On your app store or browser, navigate to a proven online scanning tool with good reviews or a website whose URL starts with “https” to confirm you are in a secure location.

Secondly, free tools are frequently quite basic and perform only the minimum required service. If you choose to go this path, look for free trial versions that offer access to the full suite of premium features, including real-time protection, a firewall, and a VPN. This will give you a glimpse of a solution’s comprehensive, multi-layered security capability before you commit to a subscription.

Cloud-based virus solutions

If safeguarding all your computers and mobile devices individually sounds overwhelming, you can opt for comprehensive security products that protect computers, smartphones and tablets from a central, cloud-based hub, making virus prevention a breeze. Many of these modern antivirus solutions are powered by both local and cloud-based technologies to reduce the strain on your computer’s resources.

Online virus scan: A step-by-step guide

This guide will walk you through the simple steps to safely scan your computer using reliable online tools, helping you detect potential threats, and protect your personal data.

1. Choose a trusted provider

When selecting the right antivirus software, look beyond a basic virus scan and consider these key features:

  • Real-time protection. This is paramount, as it actively blocks threats before they can execute.
  • An effective solution must also have a minimal performance impact so it doesn’t slow down your device.
  • Look for a program with an intuitive interface that makes it easy to schedule scans and manage settings.
  • The best protection goes beyond a simple virus detector. It should include features such as a firewall, a secure VPN for safe browsing, and identity protection.
  • Look for reliable brands with positive reviews and clear privacy policies, and that provide a powerful virus scanner and proactive protection for both Android and iOS devices.

2. Initiate the scan

The process of checking for viruses depends on the device type and its operating system. Generally, however, the virus scanner will display a “Scan” button to start the process of checking your system’s files and apps.

Here are more specific tips to help you scan your computers, phones and tablets:

On a Windows computer

If you use Windows 11, go into “Settings” and drill down to the “Privacy & Security > Windows Security > Virus & Threat Protection” tab, which will indicate if there are actions needed. This hands-off function is Microsoft’s own basic antivirus solution called Windows Defender. Built directly into the operating system and enabled by default, this solution provides a baseline of protection at no extra cost for casual Windows users. However, Microsoft is the first to admit that it lags behind specialized paid products in detecting the very latest zero-day threats.

On a Mac computer

Mac computers don’t have a built-in antivirus program, so you will have to download security software to do a virus scan. As mentioned, free antivirus applications are available online, but we recommend investing in trusted software that is proven to protect you from cyberthreats.

If you decide to invest in more robust antivirus software, running a scan is usually straightforward and intuitive. For more detailed instructions, we suggest searching the software’s help menu or going online and following their step-by-step instructions.

On smartphones and tablets

Smartphones and tablets are powerful devices that you likely use for nearly every online operation in your daily life from banking, emailing, messaging, connecting, and storing personal information. This opens your mobile device to getting infected through malicious apps, especially those downloaded from unofficial stores, phishing links sent via text or email, or by connecting to compromised wi-fi networks.

Regular virus scans with a mobile security software are crucial for protecting your devices. Be aware, however, that Android and IOS operating systems merit distinct solutions.

Antivirus products for Android devices abound due to this system’s open-source foundation. However, due to Apple’s strong security model, which includes app sandboxing, traditional viruses are rare on iPhones and iPads. However, these devices are not immune to all threats. You can still fall victim to phishing scams, insecure Wi-Fi networks, and malicious configuration profiles. Signs of a compromise can include unusual calendar events, frequent browser redirects, or unexpected pop-ups.

Apple devices, however, closed platform doesn’t easily accommodate third-party applications, especially unvetted ones. You will most likely find robust and verified antivirus scanning tools on Apple’s official app store.

Scanning files and attachments safely

Before you open any downloaded file or email attachment, it’s wise to check it for threats. To perform a targeted virus scan on a single file, simply right-click the file in Windows Explorer or macOS Finder and select the “Scan” option from the context menu to run the integrated virus checker on a suspicious item.

For an added layer of security, especially involving files from unknown sources, you can use a web-based file-checking service that scans for malware. These websites let you upload a file, which is then analyzed by multiple antivirus engines. Many security-conscious email clients also automatically scan incoming attachments, but a manual scan provides crucial, final-line defense before execution.

3. Review scan results and take action

Once the scan is complete, the tool will display a report of any threats it found, including the name of the malware and the location of the infected file. If your antivirus software alerts you to a threat, don’t panic—it means the program is doing its job.

The first and most critical step is to follow the software’s instructions. It might direct you to quarantine the malicious file to isolate the file in a secure vault where it can no longer cause harm. You can then review the details of the threat provided by your virus scanner and choose to delete the file permanently, which is usually the safest option.

After the threat is handled, ensure your antivirus software and operating system are fully updated. Finally, run a new, full system virus scan to confirm that all traces of the infection have been eliminated. Regularly backing up your important data to an external drive or cloud service can also be a lifesaver in the event of a serious infection.

4. Schedule an automatic scan for continuous protection

The most effective way to maintain your device’s security is to automate your defenses. A quality antivirus suite allows you to easily schedule a regular virus scan so you’re always protected without having to do it manually. A daily quick scan is a great habit for any user; it’s fast and checks the most vulnerable parts of your system. Most antivirus products regularly scan your computer or device in the background, so a manual scan is only needed if you notice something dubious, like crashes or excessive pop-ups. You can also set regular scans on your schedule, but a weekly full scan is ideal.

Final thoughts

These days, it is essential to stay ahead of the wide variety of continuously evolving cyberthreats. Your first line of defense against these threats is to regularly conduct a virus scan. You can choose among the many free yet limited-time products or comprehensive, cloud-based solutions.

While many free versions legitimately perform their intended function, it’s critical to be cautious as these are more often baseline solutions while some are malware in disguise. They also lack the continuous, real-time protection necessary to block threats proactively.

A better option is to invest in verified, trustworthy, and all-in-one antivirus products like McAfee+ that, aside from its accurate virus scanning tool, also offers a firewall, a virtual private network, and identity protection. For complete peace of mind, upgrading to a paid solution like McAfee Total Protection is essential for proactively safeguarding your devices and data in real-time, 24/7.

The post How to Scan for Viruses and Confirm Your Device Is Safe appeared first on McAfee Blog.

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