Microsoft has attributed a supply chain attack on ConnectWise Cloud Backup to the China-linked actor Storm-0940, who utilised the ARTEX AI agentic framework to accelerate the intrusion.
Microsoft has confirmed that October 2026 Windows Server security updates are causing issues with Outlook on the Web sign-ins and mail delivery for some on-premises Exchange Server environments.
Microsoft and law enforcement partners have dismantled Yam Store, an underground marketplace supplying phishing kits and hijacked cloud accounts.
Microsoft has resolved a Windows 11 bug causing black screens, desktop loading issues, and Explorer crashes in virtual desktop environments.