Researchers have just confirmed the largest data breach ever, with 16 billion logins up for grabs. What started as a mysterious leak is now being called a blueprint for mass exploitation.

“This is not just a leak—it’s a blueprint for mass exploitation,” researchers said. “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.”