Microsoft software and cloud platforms underpin enterprise systems, so vulnerabilities and security advisories can affect identity, data, and operations.
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Background for this topic.
Microsoft is a technology company whose Windows, Microsoft 365, Azure, identity services, and developer tools form a widely deployed enterprise computing ecosystem. Its security relevance spans endpoint and server software, cloud control planes, authentication, collaboration data, and the update mechanisms used to maintain them.
Security news under this tag commonly concerns vulnerabilities requiring patching, exploits against exposed services, identity or token compromise, and misconfiguration of cloud permissions or authentication policies. Practitioners should verify affected versions and exposure, apply updates or mitigations, enforce multifactor authentication and least privilege, and monitor relevant audit logs. Incidents involving Microsoft-hosted identities or data may require rapid session and credential containment, investigation across cloud and on-premises systems, and assessment of privacy or regulatory obligations.
A vulnerability in the WinRAR file archiver solution could be exploited to bypass the Mark of the Web (MotW) security warning and execute arbitrary code on a Windows machine. [...]
Microsoft is testing a new taskbar icon scaling feature that automatically scales down Windows taskbar icons to show more apps when it gets too overcrowded. [...]
Microsoft has announced that hotpatch updates are now available for business customers using Windows 11 Enterprise 24H2 on x64 (AMD/Intel) systems, starting today. [...]
A previously unknown trick lets you easily bypass using a Microsoft Account in Windows 11, just as Microsoft tries to make it harder to use local accounts. [...]
Microsoft used its AI-powered Security Copilot to discover 20 previously unknown vulnerabilities in the GRUB2, U-Boot, and Barebox open-source bootloaders. [...]
Microsoft has begun testing a new Windows 11 tool called Quick Machine Recovery, which is designed to remotely deploy fixes for buggy drivers and configurations that prevent the operating system from starting. [...]
Microsoft has removed the 'BypassNRO.cmd' script from Windows 11 preview builds, which allowed users to bypass the requirement to use a Microsoft Account when installing the operating system. [...]