Windows 11 Release Preview: Copilot in Excel and critical security patches now live
… Enterprise and IT admin controls All three builds introduce new Group Policy Objects that give IT administrators direct control over AI features. …
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Windows 11: May 2026 Patch Tuesday is live
… Microsoft typically begins deploying Patch Tuesday updates at around 1:00 PM ET. The security side of May's update arrives at a critical moment. …
Microsoft mitigates YellowKey BitLocker bypass, no patch yet
… No full security update is available yet. The company confirmed it is working on a permanent fix and is urging administrators across affected Windows versions to apply the interim steps immediately. …
Microsoft patches Defender zero-days exploited in live attacks
… Administrators should confirm their deployments are running those versions or newer, particularly in air-gapped or managed environments where automatic updates may be delayed. …
Microsoft Defender flags DigiCert certificates as malware
… Microsoft's recommendation is to update Defender to the latest available Security Intelligence version via Settings, then Windows Security, then Virus and Threat Protection, then Protection Updates. …
Windows 11 update KB5089573: Shared audio & partition fix
… It is not a routine fleet-wide step, and administrators managing older hardware pools should verify ESP free space before deploying May's security update rather than relying on post-failure remediation. …
Windows 11 lets you pause updates indefinitely, ends forced restarts for Insiders
… Hanson's post notes that Microsoft still recommends installing updates promptly for security reasons, and the company has added automatic background recovery for update failures as a secondary safeguard. …
Microsoft Exchange Server zero-day exploited via crafted email
… Administrators can verify status using the Exchange Health Checker script at aka.ms/ExchangeHealthChecker. …
Google identifies first AI-developed zero-day exploit
… The company's Threat Intelligence Group, GTIG, published its AI Threat Tracker report on May 11, 2026, detailing how a prominent cybercrime group used an AI model to identify and weaponize a security flaw in a popular open-source web administration tool. …
Microsoft's MDASH AI found 16 critical Windows flaws before hackers could exploit them
… Notebookcheck covered Google's confirmation of the first known zero-day exploit developed by AI, used in a planned mass exploitation campaign targeting a 2FA bypass in a widely used web administration tool Source s Microsoft Defense at Speed Help Net Security The Hacker News ⟨ Previous article Ear … …