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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.

Summer is synonymous with vacations, a time when families pack their bags, grab their sunscreen, and embark on exciting adventures. In the digital age, smartphones have become an indispensable part of our lives, serving as cameras, maps, entertainment hubs, and communication tools. While these devices enhance our travel experiences, they also become prime targets for theft or damage while we’re away from home. From keeping us connected with family and friends, assisting in navigation, capturing moments, to even helping us with language translation – it is a device of many conveniences. However, when you bring your smartphone while vacationing, like any other valuable item, it becomes a target for theft and damage. Not to mention the potential for high roaming charges.
Don’t let the fear of losing or damaging your valuable devices dampen your vacation spirit! By taking some simple precautions and implementing effective strategies, you can ensure that your family’s smartphones remain safe and secure throughout your travels. In this blog post, we’ll share essential tips and tricks for safeguarding your devices, so you can focus on creating unforgettable memories without any tech-related worries. This article will provide you with tips on how to protect your family’s smartphones while on vacation. We will cover strategies like enabling security settings, backing up data, checking for travel insurance policies, and utilizing helpful apps. Ensuring the safety of your devices will make your vacation more enjoyable and worry-free.
Traveling without smartphones seems almost impossible. However, having them on vacation puts them at risk. In tourist hotspots, where distractions are many, it is easy to lose or have your device stolen. Moreover, using public Wi-Fi networks can expose your smartphone to cyber attacks.
→ Dig Deeper: The Risks of Public Wi-Fi and How to Close the Security Gap
Therefore, it is vital to be proactive in securing both your smartphones and the data they contain. Not only will it save you from the high costs of replacing a lost or damaged phone, but it also prevents potential misuse of personal and financial information. Implementing even just a few of these safety measures can help ensure your family’s smartphones are well-protected during your vacation. So let’s dive into the practical steps you can take.
The first layer of protection for your phone should be a physical one. It starts with investing in a good quality, durable phone case. A waterproof case is always a good idea, especially if you’re planning on vacationing near the beach or a pool. A screen protector can also keep your screen from shattering or getting scratched. Remember, you’re more likely to drop your phone while on vacation as you juggle through maps, travel apps, and numerous photo opportunities.
Another aspect of physical protection is to be mindful of where you store your phone. Avoid leaving it in plain sight or unattended, which could invite potential thieves. Instead, carry it in a secure, zipped pocket or bag. If you’re staying at a hotel, consider using the safe to store your phone when not in use. Most importantly, be aware of your surroundings and keep your phone safely tucked away in crowded places.
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Safeguarding your phone is not just about protecting the physical device—your personal and sensitive data deserves protection too. Before you leave for your vacation, make sure that your phone is password-protected. Optimally, use a complex password, fingerprint, or face recognition feature instead of a simple four-digit PIN. This singular step can deter any prying eyes from accessing your information if your phone is lost or stolen.
Ensure your phone’s software is up to date. Regular updates not only enhance the device’s performance but also incorporate vital security patches, fortifying its defenses against potential threats like malware. By staying vigilant and keeping your phone’s software current, you contribute to a more secure environment, minimizing the risk of unauthorized eyes accessing your valuable information in the event of a loss or theft.
Backing up your smartphone’s data before leaving for vacation can save you from a lot of stress. In case of loss, theft, or damage, having a backup ensures that you won’t lose your cherished photos, contacts, and other essential data. Most smartphones allow you to back up your data to the cloud. Make sure to do this over a safe, secure network and not on public Wi-Fi.
For Android users, Google provides an automatic backup service for things like app data, call history, and settings. You can check if this feature is enabled on your phone by going to the Google Drive App and checking in the Backups section. For iPhone users, iCloud Backup can help save most of your data and settings. To enable it, go to Settings, tap on your name, then tap iCloud and scroll down to tap iCloud Backup.
Without proper management, staying connected while abroad can result in expensive roaming charges. Before you leave, check with your mobile provider to understand the costs associated with using your phone abroad. Some providers offer international plans that you can temporarily switch to for your vacation. If your provider’s charges are too high, consider purchasing a local SIM card once you arrive at your destination or use an international data package.
Another way to avoid roaming charges is by using Wi-Fi. Most hotels, cafes, and many public spaces have free Wi-Fi available. However, again, public Wi-Fi is not always safe. So, avoid accessing sensitive information such as bank accounts, and before traveling, download maps and essential content before traveling to reduce the need for constant data usage. This is especially helpful for navigation apps. To protect your data in such situations, it’s advisable to use a Virtual Private Network (VPN).
Several apps can help protect your phone and its data during your vacation. Most smartphone operating systems offer a “Find My Phone” feature that can locate, lock, or erase your device if it is lost or stolen. Make sure this feature is enabled before you leave.
Again, antivirus apps can provide an extra layer of protection against virus and malware threats. Password manager apps can help you create and store complex, unique passwords for your accounts to enhance security.
VPN apps can protect your data from being intercepted when using public Wi-Fi networks. There are also apps that monitor your data usage and can alert you if you’re near your limit to avoid unexpected charges. Research and install these apps prior to your vacation for added security and peace of mind.
Your family’s smartphones are essential travel companions that deserve as much protection as any other valuable item during your vacation. By physically safeguarding the device, securing your data, backing up regularly, understanding roaming charges, and utilizing productive apps, you can enjoy a worry-free vacation. Remember, in the event of a mishap, having travel insurance can provide an extra layer of financial protection. So, before setting off, review your policy and check if it covers lost or stolen devices. In the end, preparation is key, so take the time to implement these safety measures and enjoy your vacation with peace of mind.
Above and beyond security settings and software, there’s you. Get in the habit of talking with your child for a sense of what they’re doing online. As a mom, I like to ask them about their favorite games, share some funny TikTok clips or cute photos with them, and generally make it a point to be a part of their digital lives. It’s great, because it gives you peace of mind knowing what types of things they are doing or interactions they are having online.
For those of you hitting the road in the coming weeks, enjoy your travels, wherever they take you!
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