Cyber Security News

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Krebs on Security HIGH

26m

Germany Doxes “UNKN,” Head of RU Ransomware Gangs REvil, GandCrab

An elusive hacker who went by the handle "UNKN" and ran the early Russian ransomware groups GandCrab and REvil now has a name and a face. Authorities in Germany say 31-year-old Russian Daniil Maksimov...

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Krebs on Security LOW

Mar 23

‘CanisterWorm’ Springs Wiper Attack Targeting Iran

A financially motivated data theft and extortion group is attempting to inject itself into the Iran war, unleashing a worm that spreads through poorly secured cloud services and wipes data on infected...

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Krebs on Security LOW

Mar 20

Feds Disrupt IoT Botnets Behind Huge DDoS Attacks

The U.S. Justice Department joined authorities in Canada and Germany in dismantling the online infrastructure behind four highly disruptive botnets that compromised more than three million hacked Inte...

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Krebs on Security LOW

Mar 11

Iran-Backed Hackers Claim Wiper Attack on Medtech Firm Stryker

A hacktivist group with links to Iran's intelligence agencies is claiming responsibility for a data-wiping attack against Stryker, a global medical technology company based in Michigan. News reports o...

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Krebs on Security LOW

Mar 11

Microsoft Patch Tuesday, March 2026 Edition

Microsoft Corp. today pushed security updates to fix at least 77 vulnerabilities in its Windows operating systems and other software. There are no pressing "zero-day" flaws this month (compared to Feb...

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Krebs on Security LOW

Mar 8

How AI Assistants are Moving the Security Goalposts

AI-based assistants or "agents" -- autonomous programs that have access to the user's computer, files, online services and can automate virtually any task -- are growing in popularity with developers ...

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Krebs on Security LOW

Feb 28

Who is the Kimwolf Botmaster “Dort”?

In early January 2026, KrebsOnSecurity revealed how a security researcher disclosed a vulnerability that was used to assemble Kimwolf, the world's largest and most disruptive botnet. Since then, the p...

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Krebs on Security LOW

Feb 20

‘Starkiller’ Phishing Service Proxies Real Login Pages, MFA

Most phishing websites are little more than static copies of login pages for popular online destinations, and they are often quickly taken down by anti-abuse activists and security firms. But a stealt...

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Germany Doxes “UNKN,” Head of RU Ransomware Gangs REvil, GandCrab

‘CanisterWorm’ Springs Wiper Attack Targeting Iran

Feds Disrupt IoT Botnets Behind Huge DDoS Attacks

Iran-Backed Hackers Claim Wiper Attack on Medtech Firm Stryker

Microsoft Patch Tuesday, March 2026 Edition

How AI Assistants are Moving the Security Goalposts

Who is the Kimwolf Botmaster “Dort”?

‘Starkiller’ Phishing Service Proxies Real Login Pages, MFA

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