Technology
Columbia University data breach hits 870,000 people
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Columbia University recently confirmed a major cyberattack that compromised personal, financial and health-related information tied to students, applicants and employees. The victims include current and former students, employees and applicants. Notifications to affected individuals began Aug. 7 and are continuing on a rolling basis.
Columbia, one of the oldest Ivy League universities, discovered the breach after a network outage in June. According to Columbia, the disruption was caused by an unauthorized party that accessed its systems and stole sensitive data. Investigators are still assessing the full scope of the theft.
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TRANSUNION BECOMES LATEST VICTIM IN MAJOR WAVE OF SALESFORCE-LINKED CYBERATTACKS, 4.4M AMERICANS AFFECTED
Students on the campus of Columbia University April 14, 2025, in New York City. (Charly Triballeau/AFP via Getty Images)
What information was stolen?
According to a breach notification filed with the Maine Attorney General’s office, nearly 869,000 individuals were affected by the Columbia breach. This number includes students, employees, applicants and, in some cases, family members. Media outlets also reported that the threat actor claimed to have stolen approximately 460 gigabytes of data from Columbia’s systems.
Columbia confirmed that the stolen information relates to admissions, enrollment and financial aid records, as well as certain employee data. The categories of exposed information include:
- Names, dates of birth and Social Security numbers
- Contact details and demographic information
- Academic history and financial aid records
- Insurance details and certain health information
Columbia emphasized that patient records from Columbia University Irving Medical Center were not affected. Still, the breadth of stolen data poses serious risks of identity theft and fraud.
DIOR DATA BREACH EXPOSES US CUSTOMERS’ PERSONAL INFORMATION
Columbia University campus (Luiz C. Ribeiro for New York Daily News/Tribune News Service via Getty Images)
Columbia University response
Columbia has reported the incident to law enforcement and is working with cybersecurity experts. The university said it has strengthened its systems with new safeguards and enhanced protocols to prevent future incidents.
Starting Aug. 7, Columbia began mailing letters to those affected, offering two years of complimentary credit monitoring, fraud consultation and identity theft restoration services.
When contacted, Columbia referred CyberGuy to its official community updates, published June 24 and Aug. 5.
While the university says there is no evidence that the stolen data has been misused so far, the risk remains high. Criminals often wait months before exploiting stolen data.
NEARLY A MILLION PATIENTS HIT BY DAVITA DIALYSIS RANSOMWARE ATTACK
Columbia University says a June network outage is to blame for the breach. (Silas Stein/picture alliance via Getty Images)
Steps to protect yourself after the Columbia University breach
If you are among those affected or simply want to safeguard your data, take these steps today:
1) Monitor your credit reports
Check your credit reports regularly through AnnualCreditReport.com. Look for accounts you did not open or changes you did not authorize.
2) Use a personal data removal service
Since Columbia confirmed that stolen files may include names, addresses and demographic details, consider using a personal data removal service. These services help scrub your information from data brokers and people search sites, making it harder for criminals to exploit exposed details. This step reduces the chance that stolen Columbia records are linked to your broader online identity.
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 and get a free scan to find out if your personal information is already out on the web by visiting Cyberguy.com/Delete
Get a free scan to find out if your personal information is already out on the web: Cyberguy.com/FreeScan
3) Set up fraud alerts and freezes
Placing a fraud alert makes it harder for identity thieves to open accounts in your name. A credit freeze offers even stronger protection by blocking new credit applications.
4) Use strong and unique passwords
Create long, complex passwords for each account. A password manager can help generate and securely store them.
Next, see if your email has been exposed in past breaches. Our No. 1 password manager (see Cyberguy.com/Passwords) pick includes a built-in breach scanner that checks whether your email address or passwords have appeared in known leaks. If you discover a match, immediately change any reused passwords and secure those accounts with new, unique credentials.
Check out the best expert-reviewed password managers of 2025 at Cyberguy.com/Passwords
5) Enable two-factor authentication
Turn on two-factor authentication (2FA) wherever possible. This extra layer of security helps protect your accounts even if a password is stolen.
6) Watch for phishing attempts and use strong antivirus software
Scammers may try to exploit fear around the breach with fake emails or texts. Verify any message before clicking links or sharing personal information.
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.
Get my picks for the best 2025 antivirus protection winners for your Windows, Mac, Android and iOS devices at Cyberguy.com/LockUpYourTech
7) Consider identity theft protection services
Beyond the free credit monitoring Columbia offers, additional paid services can help track your data across the dark web and provide extra safeguards.
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 at Cyberguy.com/IdentityTheft
Kurt’s key takeaways
The Columbia University breach shows how even trusted institutions are vulnerable to cyberattacks. Because the investigation is ongoing and notifications will continue through the fall, individuals should remain on high alert. With so much personal, financial and health information exposed, staying alert long after the headlines fade is critical.
What more should universities and large institutions be required to do to safeguard the personal data of the people who trust them? Let us know by writing to us at Cyberguy.com/Contact
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Copyright 2025 CyberGuy.com. All rights reserved.
Technology
Meta expands nuclear power ambitions to include Bill Gates’ startup
These AI projects include Prometheus, the first of several supercluster computing systems, which is expected to come online in New Albany, Ohio, sometime this year. Meta is funding the construction of new nuclear reactors as part of the agreements, the first of which may come online “as early as 2030.” These announcements are part of Meta’s ongoing goal to support its future AI operations with nuclear energy, having previously signed a deal with Constellation to revive an aging nuclear power plant last year.
Financial information for the agreements hasn’t been released, but Meta says that it will “pay the full costs for energy used by our data centers so consumers don’t bear these expenses.”
“Our agreements with Vistra, TerraPower, Oklo, and Constellation make Meta one of the most significant corporate purchasers of nuclear energy in American history,” Meta’s chief global affairs officer, Joel Kaplan, said in the announcement. “State-of-the-art data centers and AI infrastructure are essential to securing America’s position as a global leader in AI.”
Technology
Why January is the best time to remove personal data online
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January feels like a reset. A new calendar. New goals. New habits. While you clean out your inbox, organize paperwork or set resolutions, however, scammers also hit reset, and they start with your personal data.
That is because January is one of the most important months for online privacy. This is when data brokers refresh profiles and scammers rebuild their target lists.
As a result, the longer your information stays online, the more complete and valuable your profile becomes. To help address this, institutions like the U.S. Department of the Treasury have released advisories urging people to stay vigilant and avoid data-related scams.
For that reason, taking action early in the year can significantly reduce scam attempts, lower identity theft risks, and limit unwanted exposure for the rest of the year.
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January is when data brokers refresh profiles and scammers rebuild target lists, making early action critical for online privacy. (iStock)
STOP DATA BROKERS FROM SELLING YOUR INFORMATION ONLINE
Why personal data does not expire and keeps compounding online
Many people assume old information eventually becomes useless. Unfortunately, that’s not how data brokers work.
Data brokers don’t just store a snapshot of who you are today. They build living profiles that grow over time, pulling from:
- Public records (property sales, court filings, voter registrations)
- Retail purchases and loyalty programs
- App usage and location data
- Past addresses, phone numbers, and relatives
- Marketing databases and online activity.
Each year adds another layer. A new address. A changed phone number. A family connection. A retirement milestone. On its own, one data point doesn’t mean much. But together, they create a detailed identity profile that scammers can use to convincingly impersonate you. That’s why waiting makes things worse, not better.
Why scammers ‘rebuild’ targets at the start of the year
Scammers don’t randomly target people. They work from lists. At the beginning of the year, those lists get refreshed.
Why January matters so much:
- Data brokers update and resell profiles after year-end records close
- New public filings from the previous year become searchable
- Marketing databases reset campaigns and audience segments
- Scam networks repackage data into “fresh” target lists.
Think of it like the upcoming spring cleaning, except it’s criminals organizing identities to exploit for the next 12 months.
If your data is still widely exposed in January, you’re far more likely to:
Once your profile is flagged as responsive or profitable, it often stays in circulation.
As personal information accumulates across databases, digital profiles grow more detailed and more valuable to scammers over time. (Kurt “CyberGuy” Knutsson)
Why taking action in January protects you all year long
Removing your data early isn’t just about stopping scams today; it’s about cutting off the supply chain that fuels them. When your information is removed from data broker databases:
- It’s harder for scammers to find accurate contact details
- Phishing messages become less convincing
- Impersonation attempts fail more often
- Your identity becomes less valuable to resell.
This has a compounding benefit in the opposite direction. The fewer lists you appear on in January, the fewer times your data gets reused, resold, and recycled throughout the year. That’s why I consistently recommend addressing data exposure before problems start, not after.
Why retirees and families feel the impact first
January is especially important for retirees and families because they’re more likely to become targets of fraud, scams, and other crimes.
Retirees often have:
- Long addresses and employment histories
- Stable credit profiles
- Fewer active credit applications
- Public retirement and property records
Families add another layer of risk:
- Relatives are linked together in broker profiles
- One exposed family member can expose others
- Shared addresses and phone plans increase visibility
Scammers know this. That’s why households with established financial histories are prioritized early in the year.
Why quick fixes don’t work
Many people try to “start fresh” in January by:
Those steps help, but they don’t remove your data from broker databases. Credit monitoring services alert you after something goes wrong. Password changes don’t affect public profiles. And unsubscribing doesn’t stop data resale. If your personal information is still sitting in hundreds of databases, scammers can find you.
The January privacy reset that actually works
If you want fewer scam attempts for the rest of the year, the most effective step is removing your personal data at the source.
You can do this in one of two ways. You can submit removal requests yourself, or you can use a professional data removal service to handle the process for you.
Removing your data yourself
Manually removing your data means identifying dozens or even hundreds of data broker websites, finding their opt-out forms and submitting removal requests one by one. You also need to verify your identity, track responses and repeat the process whenever your information reappears.
This approach works, but it requires time, organization, and ongoing follow-up.
Using a data removal service
A data removal service handles this process on your behalf. These services typically:
- Send legal data removal requests to large networks of data brokers
- Monitor for reposted information and submit follow-up removals
- Continue tracking your exposure throughout the year
- Manage a process that most people cannot realistically maintain on their own
Removing your data at the start of the year helps reduce scam attempts, phishing messages and identity theft risks all year long. (iStock)
Because these services handle sensitive personal information, it is important to choose one that follows strict security standards and uses verified removal methods.
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.
RETIREES LOSE MILLIONS TO FAKE HOLIDAY CHARITIES AS SCAMMERS EXPLOIT SEASONAL GENEROSITY
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 takeaways
Scammers don’t wait for mistakes. They wait for exposed data. January is when profiles are refreshed, lists are rebuilt, and targets are chosen for the year ahead. The longer your personal information stays online, the more complete-and dangerous-your digital profile becomes. The good news? You can stop the cycle. Removing your data now reduces scam attempts, protects your identity, and gives you a quieter, safer year ahead. If you’re going to make one privacy move this year, make it early-and make it count.
Have you ever been surprised by how much of your personal information was already online? Let us know by writing to us at Cyberguy.com.
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Copyright 2025 CyberGuy.com. All rights reserved.
Technology
Xbox’s Towerborne is switching from a free-to-play game to a paid one
Towerborne, a side-scrolling action RPG published by Xbox Game Studios that has been available in early access, will officially launch on February 26th. But instead of launching as a free-to-play, always-on online game as originally planned, Towerborne is instead going to be a paid game that you can play offline.
“You will own the complete experience permanently, with offline play and online co-op,” Trisha Stouffer, CEO and president of Towerborne developer Stoic, says in an Xbox Wire blog post. “This change required deep structural rebuilding over the past year, transforming systems originally designed around constant connectivity. The result is a stronger, more accessible, and more player-friendly version of Towerborne — one we’re incredibly proud to bring to launch.”
“After listening to our community during Early Access and Game Preview, we learned players wanted a complete, polished experience without ongoing monetization mechanics,” according to an FAQ. “Moving to a premium model lets us deliver the full game upfront—no live-service grind, no pay-to-win systems—just the best version of Towerborne.”
With the popular live service games like Fortnite and Roblox getting harder to usurp, Towerborne’s switch to a premium, offline-playable experience could make it more enticing for players who don’t want to jump into another time-sucking forever game. It makes Towerborne more appealing to me, at least.
With the 1.0 release of the game, Towerborne will have a “complete” story, new bosses, and a “reworked” difficulty system. You’ll also be able to acquire all in-game cosmetics for free through gameplay, with “no more cosmetic purchasing.” Players who are already part of early access will still be able to play the game.
Towerborne will launch on February 26th on Xbox Series X / S, Xbox on PC, Game Pass, Steam, and PS5. The standard edition will cost $24.99, while the deluxe edition will cost $29.99.
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