Technology
Blue Shield exposed 4.7M patients’ health data to Google
Healthcare institutions and insurers arguably collect the most sensitive information about you, including IDs, contact details, addresses and medical records. But they often don’t put in the same level of effort to protect that data.
That’s clear from the growing number of healthcare data breaches we’ve seen recently. In most of those cases, a bad actor was involved.
But in the latest news, health insurance giant Blue Shield of California confirmed that it had been sharing private health data of 4.7 million users with Google for three years without even realizing it.
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A person doing a Google search (Kurt “CyberGuy” Knutsson))
What you need to know
Blue Shield of California just admitted to a major data privacy slip that went on for almost three years, from April 2021 to January 2024. It was using Google Analytics to track how people used its member websites. This is totally normal since every business does it. But the tool was accidentally sharing sensitive info with Google Ads because it wasn’t set up properly.
What I find extremely shocking is that it took the company three years to realize it was sharing its user data with Google to run ads. This says a lot about how much these healthcare giants care about protecting your data.
The shared data included a broad array of protected health information (PHI), including names, zip codes, gender, medical claim dates, online account numbers, insurance plan names, group numbers, family data and even search criteria used in its “Find a Doctor” feature.
“Google may have used this data to conduct focused ad campaigns back to those individual members. We want to reassure our members that no bad actor was involved, and, to our knowledge, Google has not used the information for any purpose other than these ads or shared the protected information with anyone,” the company said in a notice on its website.
This incident is not isolated. Over the past few years, healthcare and tech companies have come under scrutiny for similar missteps. The Federal Trade Commission (FTC) and the Department of Health and Human Services (HHS) have already issued warnings about the use of tracking technologies in healthcare, especially those that might expose patient data to third parties without adequate transparency or safeguards.
A Google spokesperson provided the following comment to CyberGuy when asked about the Blue Shield data breach:
“Businesses, not Google, manage the data they collect and must inform users about its collection and use. By default, any data sent to Google Analytics for measurement does not identify individuals, and we have strict policies against collecting private health information (PHI) or advertising based on sensitive information.”
A person working on their laptop (Kurt “CyberGuy” Knutsson)
MALWARE EXPOSES 3.9 BILLION PASSWORDS IN HUGE CYBERSECURITY THREAT
Impact on patients and the industry
Since the data was only shared with Google and not any other party, the overall risk is relatively low, apart from the clear privacy violation. It’s highly unlikely that anyone else will gain access to it, so the chances of the data being misused are slim. Google says it doesn’t allow ads to be served based on sensitive information like health, so there’s a good chance your data wasn’t even used for advertising.
Blue Shield’s case follows a string of similar breaches. Companies like GoodRx, BetterHelp and Kaiser have all faced regulatory and legal consequences for sharing sensitive user data with advertising vendors. Some even settled for millions of dollars. Despite the risks, many healthcare organizations have continued using these tools due to the lack of clear regulatory guardrails, a situation complicated further by a federal court ruling that blocked the Biden administration’s attempts to curb the use of online trackers in healthcare settings.
WHAT IS ARTIFICIAL INTELLIGENCE (AI)?
A person working on a laptop (Kurt “CyberGuy” Knutsson)
HOW TO REMOVE YOUR PRIVATE DATA FROM THE INTERNET
How to protect your health data online
The Blue Shield of California incident is a reminder that even well-known healthcare providers can mishandle sensitive data. While you can’t always control what happens behind the scenes, there are steps you can take to reduce your exposure and safeguard your privacy:
1. Limit what you share on health portals: Avoid entering more personal details than absolutely necessary on insurance or provider websites. Tools like “Find a Doctor” might log your search terms, so keep inputs vague when possible.
2. Use privacy-focused browsers: Browsers like Brave or Firefox offer built-in privacy protections, such as blocking third-party trackers that could expose health-related browsing activity.
3. Turn off ad personalization: Visit Google’s Ad Settings and disable ad personalization. This won’t stop tracking, but it can reduce how your data is used for targeting.
4. Opt out of tracking where possible: Many healthcare sites use cookies and tracking tools. Choose “reject all” or the strictest privacy settings in cookie banners. If a tracking opt-out tool is available, use it.
5. Read privacy policies (yes, really): Look for language like “third-party sharing,” “advertising,” or “analytics.” If a healthcare provider mentions tools like Google Analytics or Meta Pixel, that’s a cue to proceed cautiously.
6. Monitor your accounts and credit: Keep an eye out for unusual insurance claims or medical charges. Set up credit alerts or monitoring services if your provider offers them, especially after a breach.
7. Ask questions: Call or email your healthcare provider or insurer. Ask what tracking tools they use and how they protect your data. The more consumers push for transparency, the more pressure there is to improve standards.
Bonus privacy steps (For extra peace of mind)
If you want to go beyond the basics, here are some additional steps that can help reduce your digital footprint and catch misuse early:
Use a personal data removal service: While no service can guarantee the complete removal of your data from the internet, a data removal service is really a smart choice. They aren’t cheap — and neither is your privacy. These services do all the work for you by actively monitoring and systematically erasing your personal information from hundreds of websites. It’s what gives me peace of mind and has proven to be the most effective way to erase your personal data from the internet. By limiting the information available, you reduce the risk of scammers cross-referencing data from breaches with information they might find on the dark web, making it harder for them to target you. Check out my top picks for data removal services here.
Consider identity theft protection services: If you’re concerned about fraud or medical identity theft, you’ll want to consider using identity theft protection services. 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.
Use strong antivirus software: To guard against malware or phishing attacks that could compromise access to your online health accounts, be sure to use strong antivirus software. The best way to safeguard yourself from malicious links that install malware, potentially accessing your private information, is to have 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. Get my picks for the best 2025 antivirus protection winners for your Windows, Mac, Android and iOS devices.
Kurt’s key takeaway
It baffles me how careless most companies are when it comes to protecting user data. Blue Shield “mistakenly” shared your data with Google, which then used it to show personalized ads. It took the company three years to realize this. While most cyber incidents involve an attacker, this breach didn’t need one. We need accountability in data practices, especially when human error or tech oversight can cause damage at scale.
How comfortable are you knowing that your health data might be used to target ads? Let us know by writing us at Cyberguy.com/Contact
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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.
Technology
300,000 Chrome users hit by fake AI extensions
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Your web browser may feel like a safe place, especially when you install helpful tools that promise to make your life easier. But security researchers have uncovered a dangerous campaign in which more than 300,000 people installed Chrome extensions pretending to be artificial intelligence (AI) assistants. Instead of helping, these fake tools secretly collect sensitive information like your emails, passwords and browsing activity.
They used familiar names like ChatGPT, Gemini and AI Assistant. If you use Chrome and have installed any AI-related extension, your personal information may already be exposed. Even worse, some of these malicious extensions are still available today, putting more people at risk without their knowing.
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More than 300,000 Chrome users installed fake AI extensions that secretly harvested sensitive data. (Kurt “CyberGuy” Knutsson)
What you need to know about fake AI extensions
Security researchers at browser security company LayerX discovered a large campaign involving 30 malicious Chrome extensions disguised as AI-powered assistants (via BleepingComputer). Together, these extensions were installed more than 300,000 times by unsuspecting users.
Some of the most popular extensions included names like AI Sidebar with 70,000 users, AI Assistant with 60,000 users, ChatGPT Translate with 30,000 users, and Google Gemini with 10,000 users. Another extension called Gemini AI Sidebar had 80,000 users before it was removed.
These extensions were distributed through the official Chrome Web Store, which made them appear legitimate and trustworthy. Even more concerning, researchers found that many of these extensions were connected to the same malicious server, showing they were part of a coordinated effort.
While some extensions have since been removed, others remain available. This means new users could still unknowingly install them and expose their personal data. Here’s the list of the affected extensions:
- AI Assistant
- Llama
- Gemini AI Sidebar
- AI Sidebar
- ChatGPT Sidebar
- Grok
- Asking ChatGPT
- ChatGBT
- Chat Bot GPT
- Grok Chatbot
- Chat With Gemini
- XAI
- Google Gemini
- Ask Gemini
- AI Letter Generator
- AI Message Generator
- AI Translator
- AI For Translation
- AI Cover Letter Generator
- AI Image Generator ChatGPT
- Ai Wallpaper Generator
- Ai Picture Generator
- DeepSeek Download
- AI Email Writer
- Email Generator AI
- DeepSeek Chat
- ChatGPT Picture Generator
- ChatGPT Translate
- AI GPT
- ChatGPT Translation
- ChatGPT for Gmail
FAKE AI CHAT RESULTS ARE SPREADING DANGEROUS MAC MALWARE
These malicious tools were listed in the official Chrome Web Store, making them appear legitimate and trustworthy. (LayerX)
How the fake AI Chrome extension attack works
These fake extensions pretend to offer helpful AI features, such as translating text, summarizing emails, or acting as an AI assistant. But behind the scenes, they quietly monitor what you are doing online.
Once installed, the extension gains permission to view and interact with the websites you visit. This allows it to read the contents of web pages, including login screens where you enter your username and password.
In some cases, the extensions specifically targeted Gmail. They could read your email messages directly from your browser, including emails you received and even drafts you were still writing. This means attackers could access private conversations, financial information and sensitive personal details.
The extensions then sent this information to servers controlled by the attackers. Because they loaded content remotely, the attackers could change their behavior at any time without needing to update the extension.
Some versions could also activate voice features through your browser. This could potentially capture spoken conversations near your device and send transcripts back to the attackers.
If you installed one of these extensions, attackers may already have access to extremely sensitive information. This includes your email content, login credentials, browsing habits and possibly even voice recordings.
We reached out to Google for comment, and a spokesperson told CyberGuy that the company “can confirm that the extensions from this report have all been removed from the Google Web Store.”
BROWSER EXTENSION MALWARE INFECTED 8.8M USERS IN DARKSPECTRE ATTACK
Once installed, the extensions could read emails, capture passwords, monitor browsing activity and send the data to attacker-controlled servers. (Bildquelle/ullstein bild via Getty Images)
7 ways you can protect yourself from malicious Chrome extensions
If you have ever installed an AI-related Chrome extension, taking a few simple precautions now can help protect your accounts and prevent further damage.
1) Remove any suspicious or unused browser extensions
On a Windows PC or Mac, open Chrome and type chrome://extensions into the address bar. Review every extension listed. If you see anything unfamiliar, especially AI assistants you don’t remember installing, click “Remove” immediately. Malicious extensions depend on going unnoticed. Removing them stops further data collection and cuts off the attacker’s access to your information.
2) Change your passwords
If you installed any suspicious extension, assume your passwords may be compromised. Start by changing your email password first, since email controls access to most other accounts. Then update passwords for banking, shopping and social media accounts. This prevents attackers from using stolen credentials to break into your accounts.
3) Use a password manager to create and protect strong passwords
A password manager generates unique, complex passwords for each account and stores them securely. This prevents attackers from accessing multiple accounts if one password is stolen. Password managers also alert you if your login credentials appear in known data breaches, helping you respond quickly and protect your identity. Check out the best expert-reviewed password managers of 2026 at Cyberguy.com.
4) Install strong antivirus software and keep it active
Good antivirus software can detect malicious browser extensions, spyware, and other hidden threats. It scans your system for suspicious activity and blocks harmful programs before they can steal your information. This adds an important layer of protection that works continuously in the background to keep your device safe. Get my picks for the best 2026 antivirus protection winners for your Windows, Mac, Android & iOS devices at Cyberguy.com.
5) Use an identity theft protection service
Identity theft protection services monitor your personal data, including email addresses, financial accounts, and Social Security numbers, for signs of misuse. If criminals try to open accounts or commit fraud using your information, you receive alerts quickly. Early detection allows you to act fast and limit financial and personal damage. See my tips and best picks on how to protect yourself from identity theft at Cyberguy.com.
6) Keep your browser and computer fully updated
Software updates fix security vulnerabilities that attackers exploit. Enable automatic updates for Chrome and your operating system so you always have the latest protections. These updates strengthen your defenses against malicious extensions and prevent attackers from taking advantage of known weaknesses.
7) Use a personal data removal service
Personal data removal services scan data broker websites that collect and sell your personal information. They help remove your data from these sites, reducing what attackers can find and use against you. Less exposed information means fewer opportunities for criminals to target you with scams, identity theft or phishing attacks.
Check out my top picks for data removal services and get a free scan to find out if your personal information is already out on the web by visiting Cyberguy.com.
Get a free scan to find out if your personal information is already out on the web: Cyberguy.com.
Kurt’s key takeaway
Even tools designed to make your life easier can become tools for cybercriminals. Malicious extensions often hide behind trusted names and convincing features, making them difficult to spot. You can significantly reduce your risk by reviewing your browser extensions regularly, removing anything suspicious and using protective tools like password managers and strong antivirus software.
Have you checked your browser extensions recently? Let us know your thoughts by writing to us at Cyberguy.com.
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Technology
Anthropic refuses Pentagon’s new terms, standing firm on lethal autonomous weapons and mass surveillance
Less than 24 hours before the deadline in an ultimatum issued by the Pentagon, Anthropic has refused the Department of Defense’s demands for unrestricted access to its AI.
It’s the culmination of a dramatic exchange of public statements, social media posts, and behind-the-scenes negotiations, coming down to Defense Secretary Pete Hegseth’s desire to renegotiate all AI labs’ current contracts with the military. But Anthropic, so far, has refused to back down from its two current red lines: no mass surveillance of Americans, and no lethal autonomous weapons (or weapons with license to kill targets with no human oversight whatsoever). OpenAI and xAI had reportedly already agreed to the new terms, while Anthropic’s refusal had led to CEO Dario Amodei being summoned to the White House this week for a meeting with Hegseth himself, in which the Secretary reportedly issued an ultimatum to the CEO to back down by the end of business day on Friday or else.
In a statement late Thursday, Amodei wrote, “I believe deeply in the existential importance of using AI to defend the United States and other democracies, and to defeat our autocratic adversaries. Anthropic has therefore worked proactively to deploy our models to the Department of War and the intelligence community.”
He added that the company has “never raised objections to particular military operations nor attempted to limit use of our technology in an ad hoc manner” but that in a “narrow set of cases, we believe AI can undermine, rather than defend, democratic values” — going on to specifically mention mass domestic surveillance and fully autonomous weapons. (Amodei mentioned that “partial autonomous weapons … are vital to the defense of democracy” and that fully autonomous weapons may eventually “prove critical for our national defense,” but that “today, frontier AI systems are simply not reliable enough to power fully autonomous weapons.” He did not rule out Anthropic acquiescing to the military’s use of fully autonomous weapons in the future but mentioned that they were not ready now.)
The Pentagon had already reportedly asked major defense contractors to assess their dependence on Anthropic’s Claude, which could be seen as the first step to designating the company a “supply chain risk” – a public threat that the Pentagon had made recently (and a classification usually reserved for threats to national security). The Pentagon was also reportedly considering invoking the Defense Production Act to make Anthropic comply.
Amodei wrote in his statement that the Pentagon’s “threats do not change our position: we cannot in good conscience accede to their request.” He also wrote that “should the Department choose to offboard Anthropic, we will work to enable a smooth transition to another provider, avoiding any disruption to ongoing military planning, operations, or other critical missions. Our models will be available on the expansive terms we have proposed for as long as required.”
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