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The value of Bitcoin has had its ups and downs since its inception in 2013, but its recent skyrocket in value has created renewed interest in this virtual currency. The rapid growth of this alternative currency has dominated headlines and ignited a cryptocurrency boom that has consumers everywhere wondering how to get a slice of the Bitcoin pie. For those who want to join the craze without trading traditional currencies like U.S. dollars (i.e., fiat currency), a process called Bitcoin mining is an entry point. However, Bitcoin mining poses a number of security risks that you need to know.
Mining for Bitcoin is like mining for gold—you put in the work and you get your reward. But instead of back-breaking labor, you earn the currency with your time and computer processing power. Miners, as they are called, essentially maintain and secure Bitcoin’s decentralized accounting system. Bitcoin transactions are recorded in a digital ledger called a blockchain. Bitcoin miners update the ledger by downloading a special piece of software that allows them to verify and collect new transactions. Then, they must solve a mathematical puzzle to secure access to add a block of transactions to the chain. In return, they earn Bitcoins, as well as a transaction fee.
As the digital currency has matured, Bitcoin mining has become more challenging. In the beginning, a Bitcoin user could mine on their home computer and earn a good amount of the digital currency, but these days the math problems have become so complicated that it requires a lot of expensive computing power. This is where the risks come in. Since miners need an increasing amount of computer power to earn Bitcoin, some have started compromising public Wi-Fi networks so they can access users’ devices.
One example of this security breach happened at a coffee shop in Buenos Aires, which was infected with malware that caused a 10-second delay when logging in to the cafe’s Wi-Fi network. The malware authors used this time delay to access the users’ laptops for mining. In addition to public Wi-Fi networks, millions of websites are being compromised to access users’ devices for mining. When an attacker loads mining software onto devices without the owner’s permission, it’s called a cryptocurrency mining encounter or cryptojacking.
It’s estimated that 50 out of every 100,000 devices have encountered a cryptocurrency miner. Cryptojacking is a widespread problem and can slow down your device; though, that’s not the worst that can happen. Utility costs are also likely to go through the roof. A device that is cryptojacked could have 100 percent of its resources used for mining, causing the device to overheat, essentially destroying it.
Now that you know a little about mining and the Bitcoin security risks associated with it, here are some tips to keep your devices safe as you monitor the cryptocurrency market:
The post Bitcoin Security: Mining Threats You Need to Know appeared first on McAfee Blog.
When you open your laptop or your mobile device, what is the first thing you do? Do you head to your favorite social media site to skim the latest news, or do you place your weekly grocery delivery order? No matter what your daily online habits are, even the slightest degree of caution can go a long way in staying secure online.
That’s because hackers are experts at hiding malware in your everyday online routines, or even infiltrating your cookies to steal login information and learn about your personal preferences.
According to a StatsCan Canadian internet use survey, six out of ten internet users reported experiencing a cybersecurity incident. There are many hoops to jump through when navigating the digital landscape. By taking the necessary steps to remedy vulnerabilities in your digital activity, you can dramatically improve your online protection.
Cybercriminals take advantage of online users through routine avenues you would not expect. Here are three common ways that cybercriminals eavesdrop on online users.
Adware, or advertising-supported software, generates ads in the user interface of a person’s device. Adware is most often used to generate revenue for the developer by targeting unsuspecting online users with personalized ads paid by third parties. These third parties usually pay per view, click, or application installation.
Though not always malicious, adware crosses into dangerous territory when it is downloaded without a user’s consent and has nefarious intent. In this case, the adware becomes known as a potentially unwanted application (PUA) that can remain undetected on users’ devices for long periods of time. According to a report by the Cybersecure Policy Exchange, an unintentionally installed or downloaded computer virus or piece of malware is one of the top five cybercrimes that Canadians experience. The PUA can then create issues like frequent crashes and slow performance.
Users unknowingly download adware onto their device when they download a free ad-supported program or visit a non-secure site that does not use the Hypertext Transfer Protocol Secure (HTTPS) to encrypt online communication.
Hackers also use invasive tactics known as ad injections, where they inject ads with malicious code for increased monetary gain. This is a practice known as “malvertising.” If a user clicks on a seemingly legitimate and well-placed ad, they risk exposing themselves to numerous online threats. These ads can be infected with malware such as viruses or spyware. For example, hackers can exploit browser vulnerabilities to download malware, steal information about the device system, and gain control over its operations. Hackers can also use malvertising to run fraudulent tech support scams, steal cookie data, or sell information to third-party ad networks.
Another vulnerability that many may not realize is their browser’s built-in autofill functions. As tempting as it is to use your browser’s autofill function to populate a long form, this shortcut may not be safe. Cybercriminals have found ways to capture credentials by inserting fake login boxes onto a web page that users cannot see. So, when you accept the option to autofill your username and password, you are also populating these fake boxes.
Take a proactive approach to your digital protection the next time you are browsing the internet by reassessing your online habits. Check out these five tips to ensure you are staying as safe as possible online.
Cookie data can contain anything from login information to credit card numbers. Cybercriminals looking to exploit this information can hijack browser sessions to pose as legitimate users and steal cookies as they travel across networks and servers. As a result, it is essential for online users to regularly clear out their cookies to better protect their information from falling into the wrong hands. Navigate to your browser’s history, where you can wipe the data associated with each browser session, including your cookies.
Clearing your browser’s cookie data will also remove your saved logins, which is why leveraging a password manager can make it easier to access regularly visited online accounts.
Many browsers come with a built-in password generator and manager; however, it is better to entrust your logins and password to a reputable password manager. Browser password managers are not as secure as password managers, because anyone who has access to your device will also access your online information. A password manager, provides a more secure solution since it requires you to log in with a separate master password. A password manager also works across various browsers and can generate stronger passwords than those created by your browser.
In addition to clearing cookie data, users should adjust their browser settings to ensure their online sessions remain private.
Another option is to access the internet in Private Browsing Mode to automatically block third-party tracking, making it a quick and easy option to ensure private browsing. Users can also enable the “do not track” function of their browser to prevent third-party tracking by advertisers and websites. Additionally, you can adjust your browser settings to block pop-up ads and control site permissions, such as access to cameras and locations.
Ad blockers suppress unwanted and potentially malicious ads to ensure a safer browsing experience. Ad blockers can also make it easier to view page layout by removing distracting ads and optimizing page load speed. Additionally, they prevent websites from tracking your information that third parties can sell.
Deploying a security solution like McAfee+ Ultimate ensures the safest internet browsing experience through a holistic approach for threat detection, protection, and remediation. Equipped with a password manager, antivirus software, and firewall protection, users can effectively sidestep online threats while browsing the internet. Moreover, it includes comprehensive privacy and identity protection, such as our Personal Data Cleanup, dark web monitoring, credit monitoring, along with ways you can quickly Lock or freeze your credit file to help prevent accounts from being opened in your name.
Your online behavior can say a lot about you so make sure you safeguard your internet protection. Whether it is through malvertising or invisible forms, hackers can glean information to paint a picture of who you are to target you through deceptive tactics. Cybercriminals are always looking for vulnerabilities which is why assessing your online habits sooner rather than later is a critical first step to smarter online browsing.
The post How to Protect Your Online Privacy appeared first on McAfee Blog.
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