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Researchers have uncovered what could be the largest data leak in history: 16 billion login credentials exposed
The leaked login credentials spanned 30 databases, many of which contained recent, structured data harvested by infostealer malware.
"This is not just a leak – it's a blueprint for mass exploitation," said Cybernews researchers.
"With over 16 billion login records exposed, cybercriminals now have unprecedented access to personal credentials that can be used for account takeover, identity theft, and highly targeted phishing."
The breach wasn't traced to a single hack
Instead, it was traced to a sprawling compilation of fresh infostealer logs, found on unsecured servers.
These datasets include login details for platforms like Apple, Facebook, Google, Telegram, GitHub, and Zoom.
Some even carry cookies and session tokens, meaning attackers could bypass multi-factor authentication entirely.
"This data is particularly dangerous for organisations lacking multi-factor authentication or credential hygiene," warned the Cybernews team.
If you've ever logged into a site, your details could be in one of these troves. Unfortunately, there's no way to know for sure, since the data is a chaotic mix of overlapping records.
Here's what you should do now:
Change your passwords, especially for key services like email, banking, and social media
- Use a password manager to generate strong, unique passwords
- Enable 2FA (two-factor authentication) wherever you can
- Monitor your accounts for unusual activity
- Run a malware scan to check for infostealers hiding in your system
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