Microsoft fixes known issue causing Windows Defender crashes
Microsoft has resolved a bug that caused Windows Defender to crash after a recent security update, resulting in 0xc0000005 access violation errors on some affected systems. […]
Autor: Jaroslava Pokorná
Critical RCE flaw in Windows IKE Extension now actively exploited
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) warned that hackers are exploiting a critical-severity remote code execution (RCE) flaw in the Windows Internet Key Exchange (IKE) Service Extensions component. […]
Your Controls Block Known Attacks. What About the Behavior?
Security controls can block a familiar attack method while missing quieter ways to achieve the same objective. Picus Security’s Blue Report 2026 shows how prevention rates can vary dramatically by technique and why behavioral testing is needed to uncover those gaps. […]
AI „Mind Viruses“ Can Spread Between Agents Through Persistent Prompt Files
Security researchers at Anthropic and Switzerland’s EPFL have demonstrated that self-propagating payloads can spread from one artificial intelligence (AI) agent to the next through the editable system prompt files that autonomous agent harnesses use to carry state between sessions. The work, released as a preprint on August 10, 2026, tests the technique in a simulated…
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TWINLOOT Abuses SharePoint and Teams to Steal Credentials and Move Across Networks
Cybersecurity researchers have disclosed details of a previously undocumented Python implant framework dubbed TWINLOOT. „TWINLOOT is a modular, PyArmor-hardened Python implant designed to operate its entire command-and-control infrastructure inside trusted Microsoft services,“ Ontinue said in a technical report shared with The Hacker News. „Tasking flows through SharePoint Online file