The story you are reading is a series of scoops nestled inside a far more urgent Internet-wide security advisory. The vulnerability at issue has been exploited for months already, and

Continue ReadingThe Kimwolf Botnet is Stalking Your Local Network

KrebsOnSecurity.com celebrates its 16th anniversary today! A huge “thank you” to all of our readers — newcomers, long-timers and drive-by critics alike. Your engagement this past year here has been

Continue ReadingHappy 16th Birthday, KrebsOnSecurity.com!

Direct navigation — the act of visiting a website by manually typing a domain name in a web browser — has never been riskier: A new study finds the vast

Continue ReadingMost Parked Domains Now Serving Malicious Content

Microsoft today pushed updates to fix at least 56 security flaws in its Windows operating systems and supported software. This final Patch Tuesday of 2025 tackles one zero-day bug that

Continue ReadingMicrosoft Patch Tuesday, December 2025 Edition