Xiaomi has just given a global launch to two of its latest flagship phones, the Xiaomi 17 and 17 Ultra, along with a Leica-branded Leitzphone edition of the Ultra. There’s no sign, however, of the 17 Pro, which launched in China with an additional display mounted next to the rear cameras.
Technology
How to breathe new life into an old computer
Got an old computer collecting dust in a closet or tucked under a desk? You’re not alone. Many people hold on to aging desktops and laptops, either as backup machines or because they still run “just fine.” But here’s the catch: if that PC is no longer receiving Windows updates, it could be a security risk, even if it seems perfectly functional. Janet from East Wakefield, NH, recently wrote to us about this very dilemma:
“We need to update our computer due to Windows 11 not running on our older computer. We have two older computers, one we are upgrading and the second one I would like to continue to use on occasion. Do I run the risk of incursions into my software since I will no longer get security upgrades? Any advice on what I should remove (ie, finance info.)? Also, any advice for the older tower? Runs perfectly with solid state SSD. We are loath to put it into the recycling bin.”
The good news is you don’t have to toss it just yet. With a few smart steps, you can use it safely or transform it into something completely new and useful. Let’s look at how you can breathe new life into your old computer.
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A woman working on her older laptop. (Kurt “CyberGuy” Knutsson)
Why using an unsupported PC can be risky
First of all, once Microsoft stops supporting your version of Windows, your PC no longer receives security patches, bug fixes, updated drivers, or browser support. Even if the system still runs smoothly, it becomes more vulnerable to cyber threats like malware, ransomware, phishing attacks and data theft. An outdated operating system is like an unlocked door. Hackers and malicious software often target these systems specifically because of their weaknesses. If you plan to keep using an older computer, especially with internet access, it’s time to update your operating system.
BEST ANTIVIRUS FOR PCS — CYBERGUY PICKS 2025
How to protect your old PC for occasional use
If you still plan to use your PC occasionally, you can minimize the risks with these simple but effective steps:
1. Use it offline only: The easiest way to stay secure is to keep your old PC off the internet entirely. You can still use it for:
- Word processing
- Organizing archives or photos
- Creative projects
- Offline games or journaling
Without internet access, you remove most external threats.
2. Remove all sensitive data: Even if you’re only using your computer for basic tasks, it’s important to scrub any personal or financial information from the system. That includes:
- Tax documents
- Bank statements
- Saved passwords
- Files with Social Security numbers
- Scanned IDs or legal documents
One effective way to securely wipe all personal files at once is to use the built-in Windows reset option, found under Settings > System > Recovery. This will remove your files and restore the system to a clean state. For step-by-step instructions, check out Microsoft’s guide to resetting your PC.
Once your old PC is wiped, it’s smart to strengthen the security of your active devices. Turn on two-factor authentication (2FA) for your accounts and use a password manager to keep your credentials safe and organized. Get more details about my best expert-reviewed Password Managers of 2025 here.
3. Disable browsers (or use a safer alternative): If you need occasional internet access, avoid using outdated browsers like old versions of Google Chrome or Microsoft Edge. Instead, try privacy-focused alternative browsers. Or better yet? Disable browsers altogether and connect to the web on a newer, supported device.
4. Install strong antivirus software that supports legacy systems: Even an offline PC can be exposed via USB drives or transferred files. The best way to safeguard yourself from malicious links that install malware, potentially accessing your private information, is to have strong antivirus software installed on all your devices. This protection can also alert you to phishing emails and ransomware scams, keeping your personal information and digital assets safe. Before installing antivirus software, make sure your older computer meets the minimum system requirements. Check for supported operating system (OS) version, RAM, and processor architecture (32-bit or 64-bit). Most providers list these on their site. Get my picks for the best 2025 antivirus protection winners for your Windows, Mac, Android and iOS devices
5. Keep important files on external storage: Avoid saving sensitive files directly on the old PC. Instead:
This keeps your data portable, protected and off the aging hardware. That way, your files are safe even if the old computer fails, and you can access them from newer devices anytime.
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A man working on his PC. (Kurt “CyberGuy” Knutsson)
TRANSFERRING DATA FROM AN OLD LAPTOP TO A NEW ONE
What about older Macs?
While this guide focuses on Windows PCs, many of the same principles apply to older Macs, especially if your system is stuck on unsupported macOS versions like High Sierra or Mojave. The best way to stay safe is to limit internet use, remove sensitive data, use supported browsers and install reliable antivirus software.
That said, older Macs have a few unique considerations:
- Limited upgrade paths: Apple restricts OS upgrades to certain hardware. You may be locked into an older system unless you install a custom macOS patcher or switch to Linux.
- Tighter integration with Apple services: Be sure to fully sign out of iCloud and disable Find My Mac before wiping or repurposing.
- Fewer repurposing options: While some Macs make great writing machines or media centers, they’re harder to customize or reconfigure than tower PCs because most Apple hardware isn’t designed for self-upgrades. Components like memory or storage are often sealed, soldered or require special tools to access.
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Ready for a second life? Here’s how to repurpose it
If the system still has a working tower, especially an SSD (Solid-State Drive), which provides fast storage and efficient performance, it could be perfect for a modern, low-cost makeover.
Option 1: Install Linux for a secure, fresh operating system
Linux is a free, fast, and secure alternative to Windows that works especially well on older computers. It’s still actively supported and great for basic tasks like browsing the web, checking emails, editing documents, streaming videos or even learning to code. You don’t need to be a tech expert to install it, as most versions come with easy, step-by-step installers.
Here are some beginner-friendly Linux versions (called “distributions” or “distros”):
- Linux Mint — Designed to feel familiar to Windows users, with a simple, traditional desktop and lots of built-in help.
- Ubuntu — One of the most popular Linux versions, known for its large support community and extensive online guides, making it easy to find help if you get stuck.
- Zorin OS — Offers a polished, modern look that resembles Windows or macOS, making it ideal for casual users or anyone switching from those systems. It even helps you run some Windows programs and provides a very user-friendly experience.
For example, Zorin OS lets you choose a desktop layout that looks like Windows, so you don’t have to relearn everything. Ubuntu is famous for its reliability and the huge number of tutorials available online, which is helpful if you’re new to Linux.
And yes, you really can install these yourself, even if you’ve never tried Linux before. This beginner’s guide to installing Linux Mint walks you through the entire process.
Option 2: Turn it into a home server or backup station
Your old PC can become the backbone of your home network. A few creative uses:
- Media center — Stream content to your TV
- Photo/video archive — Store backups and organize family memories
- Local file backup server — Save copies of important files from other devices at home
- Print or file server — Share printers or storage across devices
This keeps your old machine useful without needing daily interaction.
Option 3: Selling your PC
Before you get rid of your old PC, consider whether selling or recycling is the best fit for you. Both options are eco-friendly and can be rewarding if done right. Here’s how to handle your PC responsibly:
- Back up and wipe data: Save your important files to an external drive or cloud storage. Then, use secure data-erasing software to completely wipe your PC, ensuring your personal information is unrecoverable.
- Remove accounts and reset: Log out of all accounts, deactivate software licenses and perform a factory reset so the next owner starts fresh.
- Selling your PC: If your PC is in good condition, consider selling it through reputable platforms such as Amazon Trade-In, eBay, or local electronics stores. These options can put cash or gift cards in your pocket. Always be cautious of scams, use secure payment methods and avoid sharing unnecessary personal details.
Option 4: Donate or responsibly upcycle
If you’re done with it, let someone else benefit:
- Schools, nonprofits and senior centers often accept working devices.
- Buy Nothing or Freecycle groups can help you find a local taker.
- Some e-waste centers refurbish old PCs for families in need.
Be sure to wipe the hard drive before donating. Consider using a data erasure tool or disk-wiping software to securely erase the entire hard drive. However, always back up any important files before wiping your drive. Always, confirm that you are targeting the correct storage device during the process to avoid accidental data loss. If you’re unable to securely erase sensitive materials from your hard drive, consider removing the drive before donation and recycling it separately.
Solid-State Drive. (Kurt “CyberGuy” Knutsson)
BEST DESKTOP COMPUTERS FOR 2025
Simple upgrades that can extend its life even further
If you’re keeping the machine and want to get the most out of it, a few basic hardware upgrades can go a long way, even on an older system. These are budget-friendly fixes that can significantly improve speed, stability and longevity.
1. Add more RAM: If your system has 4GB or less, upgrading to 8 GB+ can significantly improve multitasking and responsiveness, especially with Linux. Look up your PC’s model number on the manufacturer’s website to find compatible memory. Many desktops (and some laptops) let you upgrade RAM by simply opening the case and inserting the new memory sticks into available slots.
2. Upgrade to an SSD: If you’re still using a traditional hard drive, switching to a solid-state drive can dramatically reduce boot times and make your PC feel brand new. For most older machines, look for SSDs labeled “2.5-inch SATA”, which are the most widely compatible and easy to install. Some newer systems support faster NVMe SSDs, which connect directly to the motherboard. Check your PC model or open the case to see which type your system supports. Be sure to back up your files, then either reinstall the operating system manually or clone your current drive before replacing it.
3. Clean out the dust and refresh thermal paste: Older desktops tend to overheat, which can slow things down or cause random shutdowns. Open up the case and:
- Use compressed air to clean fans and vents
- Consider replacing the thermal paste on the CPU if it’s been several years
4. Swap out the battery or power supply: If your laptop battery no longer holds a charge, or if your desktop randomly shuts off, consider replacing the battery or power supply unit.
Kurt’s key takeaways
Just because a computer is old doesn’t mean it’s useless. Whether you’re turning it into a writing station, a media server, or giving Linux a try, your old PC can still be a valuable tool. The key is security. Unsupported systems can be risky if used online, but with a few precautions or by repurposing them entirely, you can keep your data safe and extend the machine’s life in meaningful ways.
Have you repurposed an old PC? We’d love to hear what you’re doing with your older tech. Let us know by writing us at Cyberguy.com/Contact
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The 17 and 17 Ultra will apparently be available soon in the UK, Europe, and select other markets. The 17 — pitched as a rival to the likes of the iPhone 17 and Samsung Galaxy S26 — will cost £899 / €999 (about $1,200), while the larger and more capable Ultra starts from £1,299 / €1,499 ($1,750). The limited-edition Leitzphone will be substantially more expensive at £1,699 / €1,999 ($2,300), though it includes 16GB of RAM and 1TB of storage, along with a few extra accessories.
The 17 is an extremely capable small-ish flagship, with a 6.3-inch OLED display, Qualcomm Snapdragon 8 Elite Gen 5, and large 6,330mAh silicon-carbon battery (though sadly smaller than the 7,000mAh version launched in China). I won’t be writing a full review of the 17, but did spend a week using it as my main phone, and found that the battery cruised past the full-day mark, though wasn’t quite enough for two full days of my typical usage. That’s far better battery life than you’d find in similarly sized phones from Apple, Samsung, or Google.
The cameras impress too, with 50-megapixel sensors behind each of the four lenses, selfie included. Pound for pound, you won’t find many better camera systems in any phone this size.
1/10
The Ultra, unsurprisingly, takes things to another level. It’s much larger, with a 6.9-inch display, and weighs a hefty 218g. Despite that, the 6,000mAh is actually smaller, though I found it delivered pretty similar longevity.
The enormous camera is, as ever for Xiaomi’s Ultra phones, the highlight. There are 50-megapixel sensors for each of the main, ultrawide, and selfie cameras, with a large 1-inch-type sensor behind the primary lens. The periscope telephoto is even more impressive: 200-megapixel resolution, a large 1/1.4-inch sensor, and continuous optical zoom from 3.2x to 4.3x, the equivalent of 75-100mm. Xiaomi isn’t the first to pull off a true zoom phone — Sony’s Xperia 1 IV got there first in 2022 — but the telephoto camera here is far more capable than that phone’s, with natural bokeh and impressive performance even in low light.
The camera capabilities are supported by Xiaomi’s ongoing photography partner Leica, but it’s the pair’s Leitzphone that really emphasizes that. Slightly redesigned from the 17 Ultra Leica Edition that was released in China last December, this includes Leica branding across the hardware and software, a range of Leica filters and shooting styles, and a rotatable rear camera ring that can be used to control the zoom. It’s the first Leica Leitzphone produced by Xiaomi — after a trio of Japan-only Sharp models — and comes with additional branded accessories, including a case with a lens cap and a microfiber cleaning cloth.
Xiaomi has plenty of other announcements alongside the 17 series phones at MWC this year, including a super-slim magnetic power bank, the Pad 8 and Pad 8 Pro tablets, and a smart tag that supports both Google and Apple’s tech-tracking networks.
Photography by Dominic Preston / The Verge
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Free apps are supposed to cost you nothing but storage space. But in this case, they may have cost millions of people control over their own internet connections.
Google says it has disrupted what it believes was the world’s largest residential proxy network, one that secretly hijacked around 9 million Android devices, along with computers and smart home gadgets. Most people had no idea their devices were being used since the apps worked normally, and nothing looked broken.
But behind the scenes, those devices were quietly routing traffic for strangers, including cybercriminals.
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STOP GOOGLE FROM FOLLOWING YOUR EVERY MOVE
Google says it disrupted a massive residential proxy network that secretly hijacked about 9 million Android and smart devices. (AaronP/Bauer-Griffin/GC Images)
How your device became part of a proxy network
According to Google’s Threat Intelligence Group, the network was tied to a company known as IPIDEA. Instead of spreading through obvious malware, it relied on hidden software development kits, or SDKs, that were embedded inside more than 600 apps. These apps ranged from simple utilities to VPN tools and other free downloads. When you installed one, the app performed its advertised function. But it also enrolled your device into a residential proxy network.
That means your phone, computer or smart device could be used as a relay point for someone else’s internet traffic. That traffic might include scraping websites, launching automated login attempts or masking the identity of someone conducting shady online activity. From the outside, it looked like that activity came from your home IP address. You wouldn’t see it happening, and in many cases, you wouldn’t notice any major performance issues.
Google says in a single seven-day period earlier this year, more than 550 separate threat groups were observed using IP addresses linked to this infrastructure. That includes cybercrime operations and state-linked actors. Residential proxy networks are attractive because they make malicious traffic look like normal consumer activity. Instead of coming from a suspicious data center, it appears to come from someone’s living room.
What Google did to shut it down
Google says it took legal action in a U.S. federal court to seize domains used to control the infected devices and route proxy traffic. It also worked with companies like Cloudflare and other security firms to disrupt the network’s command-and-control systems. Google claims it also updated Play Protect, the built-in Android security system, so that certified devices would automatically detect and remove apps known to include the malicious SDKs.
However, Google also warned that many of these apps were distributed outside the official Play Store. That matters because Play Protect can only scan and block threats tied to apps installed through Google Play. Third-party app stores, unofficial downloads and uncertified Android devices carry far greater risk.
IPIDEA has claimed its service was meant for legitimate business use, such as web research and data collection. But Google’s research suggests the network was heavily abused by criminals. Even if some users knowingly installed bandwidth-sharing apps in exchange for rewards, many did not receive clear disclosure about how their devices were being used.
Google’s investigation also found significant overlap between different proxy brands and SDK names. What looked like separate services were often tied to the same infrastructure. That makes it harder for consumers to know which apps are safe and which are quietly monetizing their connection.
300,000 CHROME USERS HIT BY FAKE AI EXTENSIONS
Hidden software inside more than 600 apps allegedly turned phones and computers into internet relays for cybercriminals. (David Paul Morris/Bloomberg via Getty Images)
7 ways you can protect yourself from Android proxy attacks
If millions of devices can be quietly turned into internet relay points, the big question is, how do you make sure yours isn’t one of them? These steps reduce the risk that your phone, TV box or smart device gets pulled into a proxy network without you realizing it.
1) Stick to official app stores
Only download apps from the Google Play Store or other trusted app marketplaces. Some apps hide small pieces of code that can secretly use your internet connection. These are often spread through third-party app stores or direct app files called “APKs,” which are Android app files installed manually instead of through the Play Store. When you sideload apps this way, you bypass Google’s built-in security checks. Sticking to official stores helps keep those hidden threats off your device.
2) Avoid “earn money by sharing bandwidth” apps
If an app promises rewards for sharing your unused internet bandwidth, that’s a major red flag. In many cases, that is exactly how residential proxy networks recruit devices. Even if it sounds legitimate, you are effectively renting out your IP address. That can expose you to abuse, blacklisting or deeper network vulnerabilities.
3) Review app permissions carefully
Before installing any app, check what permissions it requests. A simple wallpaper app should not need full network control or background execution privileges. After installation, go into your phone’s settings and audit which apps have constant internet access, background activity rights or special device permissions.
4) Install strong antivirus software
Today’s mobile security tools can detect suspicious app behavior, unusual internet activity and hidden background services. Strong antivirus software adds an extra layer of protection beyond what’s built into your device, especially if you’ve installed apps in the past that you’re unsure about. Get my picks for the best 2026 antivirus protection winners for your Windows, Mac, Android and iOS devices at Cyberguy.com.
5) Keep your devices updated
Android security updates patch vulnerabilities that proxy operators may exploit. If you’re using an older phone, tablet or Android TV box that no longer receives updates, it may be time to upgrade. Unpatched devices are easier targets for hidden SDK abuse and botnet enrollment.
6) Use a strong password manager
If your device ever becomes part of a proxy network or is otherwise compromised, attackers often try to pivot into your accounts next. That’s why you should never reuse passwords. A password manager generates long, unique passwords for every account and stores them securely, so one breach does not unlock your email, banking or social media. Many password managers also include breach monitoring tools that alert you if your credentials appear in leaked databases, giving you a chance to act before real damage is done. Check out the best expert-reviewed password managers of 2026 at Cyberguy.com.
7) Remove apps you don’t fully trust
Go through your installed apps and delete or uninstall anything you don’t recognize or haven’t used in months. The fewer apps running on your device, the fewer opportunities there are for hidden SDKs to operate. If you suspect your device has been compromised, consider a full reset and reinstall only essential apps from trusted sources.
ANDROID MALWARE HIDDEN IN FAKE ANTIVIRUS APP
Threat groups and state-linked actors allegedly used compromised devices to mask online activity and automate attacks. (Photo Illustration by Serene Lee/SOPA Images/LightRocket via Getty Images)
Kurt’s key takeaway
Residential proxy networks operate in a gray area that sounds harmless on paper but can quickly become a shield for cybercrime. In this case, millions of everyday devices were quietly enrolled into a system that attackers used to hide their tracks. Google’s takedown is a major move, but the broader market for residential proxies is still growing. That means you need to be cautious about what you install and what permissions you grant. Free apps are rarely truly free. Sometimes, the product being sold is you and your internet connection.
Have you ever installed an app that promised rewards for sharing bandwidth, or used a free VPN without thinking twice about it? Let us know your thoughts by writing to us at Cyberguy.com.
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This week, Anthropic delivered a master class in arrogance and betrayal as well as a textbook case of how not to do business with the United States Government or the Pentagon.
Our position has never wavered and will never waver: the Department of War must have full, unrestricted access to Anthropic’s models for every LAWFUL purpose in defense of the Republic.
Instead, @AnthropicAI and its CEO @DarioAmodei, have chosen duplicity. Cloaked in the sanctimonious rhetoric of “effective altruism,” they have attempted to strong-arm the United States military into submission – a cowardly act of corporate virtue-signaling that places Silicon Valley ideology above American lives.
The Terms of Service of Anthropic’s defective altruism will never outweigh the safety, the readiness, or the lives of American troops on the battlefield.
Their true objective is unmistakable: to seize veto power over the operational decisions of the United States military. That is unacceptable.
As President Trump stated on Truth Social, the Commander-in-Chief and the American people alone will determine the destiny of our armed forces, not unelected tech executives.
Anthropic’s stance is fundamentally incompatible with American principles. Their relationship with the United States Armed Forces and the Federal Government has therefore been permanently altered.
In conjunction with the President’s directive for the Federal Government to cease all use of Anthropic’s technology, I am directing the Department of War to designate Anthropic a Supply-Chain Risk to National Security. Effective immediately, no contractor, supplier, or partner that does business with the United States military may conduct any commercial activity with Anthropic. Anthropic will continue to provide the Department of War its services for a period of no more than six months to allow for a seamless transition to a better and more patriotic service.
America’s warfighters will never be held hostage by the ideological whims of Big Tech. This decision is final.
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