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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Technology
Defense secretary Pete Hegseth designates Anthropic a supply chain risk
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.
Technology
What Trump’s ‘ratepayer protection pledge’ means for you
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When you open a chatbot, stream a show or back up photos to the cloud, you are tapping into a vast network of data centers. These facilities power artificial intelligence, search engines and online services we use every day. Now there is a growing debate over who should pay for the electricity those data centers consume.
During President Trump’s State of the Union address this week, he introduced a new initiative called the “ratepayer protection pledge” to shift AI-driven electricity costs away from consumers. The core idea is simple.
Tech companies that run energy-intensive AI data centers should cover the cost of the extra electricity they require rather than passing those costs on to everyday customers through higher utility rates.
It sounds simple. The hard part is what happens next.
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At the State of the Union address Feb. 24, 2026, President Trump unveiled the “ratepayer protection pledge” aimed at shielding consumers from rising electricity costs tied to AI data centers. (Nathan Posner/Anadolu via Getty Images)
Why AI is driving a surge in electricity demand
AI systems require enormous computing power. That computing power requires enormous electricity. Today’s data centers can consume as much power as a small city. As AI tools expand across business, healthcare, finance and consumer apps, energy demand has risen sharply in certain regions.
Utilities have warned that the current grid in many parts of the country was not built for this level of concentrated demand. Upgrading substations, transmission lines and generation capacity costs money. Traditionally, those costs can influence rates paid by homes and small businesses. That is where the pledge comes in.
What the ratepayer protection pledge is designed to do
Under the ratepayer protection pledge, large technology companies would:
- Cover the full cost of additional electricity tied to their data centers
- Build their own on-site power generation to reduce strain on the public grid
Supporters say this approach separates residential energy costs from large-scale AI expansion. In other words, your household bill should not rise simply because a new AI data center opens nearby. So far, Anthropic is the clearest public backer. CyberGuy reached out to Anthropic for a comment on its role in the pledge. A company spokesperson referred us to a tweet from Anthropic Head of External Affairs Sarah Heck.
“American families shouldn’t pick up the tab for AI,” Heck wrote in a post on X. “In support of the White House ratepayer protection pledge, Anthropic has committed to covering 100% of electricity price increases that consumers face from our data centers.”
That makes Anthropic one of the first major AI companies to publicly state it will absorb consumer electricity price increases tied to its data center operations. Other major firms may be close behind. The White House reportedly plans to host Microsoft, Meta and Anthropic in early March to discuss formalizing a broader deal, though attendance and final terms have not been confirmed publicly.
Microsoft also expressed support for the initiative.
“The ratepayer protection pledge is an important step,” Brad Smith, Microsoft vice chair and president, said in a statement to CyberGuy. “We appreciate the administration’s work to ensure that data centers don’t contribute to higher electricity prices for consumers.”
Industry groups also point to companies such as Google and utilities including Duke Energy and Georgia Power as making consumer-focused commitments tied to data center growth. However, enforcement mechanisms and long-term regulatory details remain unclear.
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The White House plans talks with Microsoft, Meta and Anthropic about shifting AI energy costs away from consumers. (Eli Hiller/For The Washington Post via Getty Images)
How this could change the economics of AI
AI infrastructure is already one of the most expensive technology buildouts in history. Companies are investing billions in chips, servers and real estate. If firms must also finance dedicated power plants or pay premium rates for grid upgrades, the cost of running AI systems increases further. That could lead to:
- Slower expansion in some markets
- Greater investment in renewable energy and storage
- More partnerships between tech firms and utilities
Energy strategy may become just as important as computing strategy. For consumers, this shift signals that electricity is now a central part of the AI conversation. AI is no longer only about software. It is also about infrastructure.
The bigger consumer tech picture
AI is becoming embedded in smartphones, search engines, office software and home devices. As adoption grows, so does the hidden infrastructure supporting it. Energy is now part of the conversation around everyday technology. Every AI-generated image, voice command or cloud backup depends on a power-hungry network of servers.
By asking companies to account more directly for their electricity use, policymakers are acknowledging a new reality. The digital world runs on very physical resources. For you, that shift could mean more transparency. It also raises new questions about sustainability, local impact and long-term costs.
ARTIFICIAL INTELLIGENCE HELPS FUEL NEW ENERGY SOURCES
As AI expansion strains the grid, a new proposal would require tech firms to fund their own power needs. (Sameer Al-Doumy/AFP via Getty Images)
What this means for you
If you are a homeowner or renter, the practical question is simple. Will this protect my electric bill? In theory, separating data center energy costs from residential rates could reduce the risk of price spikes tied to AI growth. If companies fund their own generation or grid upgrades, utilities may have less reason to spread those costs among all customers.
That said, utility pricing is complex. It depends on state regulators, long-term planning and local energy markets.
Here is what you can watch for in your area:
- New data center construction announcements
- Utility filings that mention large commercial load growth
- Public service commission decisions on rate adjustments
Even if you rarely use AI tools, your community could feel the effects of a nearby data center. The pledge is intended to keep those large-scale power demands from showing up in your monthly bill.
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Kurt’s key takeaways
The ratepayer protection pledge highlights an important turning point. AI is no longer only about innovation and speed. It is also about energy and accountability. If tech companies truly absorb the cost of their expanding power needs, households may avoid some of the financial strain tied to rapid AI growth. If not, utility bills could become an unexpected front line in the AI era.
As AI tools become part of daily life, how much extra power are you willing to support to keep them running? Let us know by writing to us at Cyberguy.com.
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Technology
Here’s your first look at Kratos in Amazon’s God of War show
Amazon has slowly been teasing out casting details for its live-action adaptation of God of War, and now we have our first look at the show. It’s a single image but a notable one showing protagonist Kratos and his son Atreus. The characters are played by Ryan Hurst and Callum Vinson, respectively, and they look relatively close to their video game counterparts.
There aren’t a lot of other details about the show just yet, but this is Amazon’s official description:
The God of War series storyline follows father and son Kratos and Atreus as they embark on a journey to spread the ashes of their wife and mother, Faye. Through their adventures, Kratos tries to teach his son to be a better god, while Atreus tries to teach his father how to be a better human.
That sounds a lot like the recent soft reboot of the franchise, which started with 2018’s God of War and continued through Ragnarök in 2022. For the Amazon series, Ronald D. Moore, best-known for his work on For All Mankind and Battlestar Galactica, will serve as showrunner. The rest of the cast includes: Mandy Patinkin (Odin), Ed Skrein (Baldur), Max Parker (Heimdall), Ólafur Darri Ólafsson (Thor), Teresa Palmer (Sif), Alastair Duncan (Mimir), Jeff Gulka (Sindri), and Danny Woodburn (Brok).
While production is underway on the God of War series, there’s no word on when it might start streaming.
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