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
UnitedHealth cyberattack exposes 190 million in largest US healthcare data breach
UnitedHealth’s Change Healthcare unit suffered a data breach in February 2024, the news of which surfaced Feb. 21.
Initially reported to have affected around 100 million individuals, the U.S. health insurance giant has now revealed that the actual number is significantly higher: 190 million. This makes it the largest breach of medical data in U.S. history, affecting nearly half the country’s population.
A breach of this magnitude can have devastating consequences for the American people as malicious actors could exploit the data for a range of attacks if it finds its way to the dark web.
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A doctor looking at patient’s private information (Kurt “CyberGuy” Knutsson)
The updated impact assessment
UnitedHealth confirmed on Friday, Jan. 24, 2025, that the ransomware attack on its Change Healthcare unit affected approximately 190 million people in the United States. The company had previously estimated the number of affected individuals to be around 100 million in its preliminary analysis filed with the Office for Civil Rights, a division of the U.S. Department of Health and Human Services that investigates data breaches.
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UnitedHealth stated that the majority of those impacted have already been notified, either directly or through substitute notice. The final tally of affected individuals will be confirmed and submitted to the Office for Civil Rights at a later date.
The company tells CyberGuy it is “not aware of any misuse of individuals’ information as a result of this incident and has not seen electronic medical record databases appear in the data during the analysis.” However, UnitedHealth did not disclose when it became aware of the additional 90 million victims, how the revised figure was determined or what changes led to the updated number.
Illustration of a hacker at work (Kurt “CyberGuy” Knutsson)
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What you need to know about the data breach
The cyberattack on Change Healthcare in February caused widespread disruptions across the U.S. healthcare sector, as the company took its systems offline to contain the breach. This shutdown impacted critical services such as claims processing, payments and data sharing, which many healthcare providers rely on.
The stolen data varied by individual but included a broad range of personal and sensitive information, such as names, addresses, dates of birth, phone numbers, email addresses and government ID numbers, including Social Security, driver’s license and passport details.
Plus, hackers may have accessed health-related information, including diagnoses, medications, test results, imaging records, care and treatment plans, and health insurance details. Financial and banking information tied to claims and payment data was also reportedly compromised.
The breach was the result of a ransomware attack carried out by ALPHV/BlackCat, a Russian-speaking ransomware and extortion group. The attack, a form of malware intrusion, locks victims out of their data unless a ransom is paid. ALPHV/BlackCat later took credit for the attack.
During a House hearing in April, Change Healthcare admitted that the breach was made possible due to inadequate security measures, specifically the absence of two-factor authentication to protect its systems.
Illustration of a hacker at work (Kurt “CyberGuy” Knutsson)
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6 ways to protect yourself from Change Healthcare data breach
1. Remove your personal information from the internet: The breach has exposed sensitive personal data, making it essential to reduce your online footprint. While no service can guarantee complete data removal, a reputable data removal service can significantly limit your exposure. These services systematically monitor and erase your personal information from numerous websites and data brokers. Check out my top picks for data removal services here.
2. Be wary of mailbox communications: With addresses among the compromised data, scammers may exploit this breach to send fraudulent letters. Be aware of mail claiming missed deliveries, account suspensions or security alerts. Always verify the authenticity of such communications before responding or taking action.
3. Be cautious of phishing attempts and use strong antivirus software: Scammers may use your compromised email or phone number to target you with phishing attacks. Be wary of messages asking for personal information or containing suspicious links. To protect yourself, ensure strong antivirus software is installed on all your devices. Get my picks for the best 2025 antivirus protection winners for your Windows, Mac, Android and iOS devices.
4. Monitor your accounts: Given the scope of this breach, regular monitoring of your bank accounts, credit card statements and other financial accounts is critical. Look for unauthorized transactions or suspicious activity and immediately report any issues to your bank or credit card provider.
5. Recognize and report a Social Security scam: If your Social Security number is exposed, you could become a target for related scams. Official communication regarding Social Security issues usually comes via mail, not phone calls or emails. Learn more about spotting and reporting scams by visiting the Social Security Administration’s scam information page.
6. Invest in identity theft protection: Data breaches happen every day, and most never make the headlines, but with an identity theft protection service, you’ll be notified if and when you are affected. Identity theft companies can monitor personal information like your Social Security number, phone number and email address and alert you if it is being sold on the dark web or being used to open an account. They can also assist you in freezing your bank and credit card accounts to prevent further unauthorized use by criminals. See my tips and best picks on how to protect yourself from identity theft.
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Kurt’s key takeaway
It’s surprising that a company of UnitedHealth’s scale failed to implement even basic cybersecurity measures when handling customer data. A breach affecting 190 million people – nearly half of the U.S. population – is staggering, leaving almost anyone at risk of becoming a target for hackers. While the company is still assessing the full extent of the breach, you can take precautions now by being cautious with any unknown links or unsolicited calls. Bad actors may use a variety of tactics to cause harm.
Do you think these companies are doing enough to protect your data, and is the government doing enough to catch those behind cyberattacks? 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.
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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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