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.
Microsoft says the APT33 Iranian cyber-espionage group is using recently discovered FalseFont backdoor malware to attack defense contractors worldwide. [...]
Microsoft is deprecating Defender Application Guard (including the Windows Isolated App Launcher APIs) for Edge for Business users. [...]
The Israel National Cyber Directorate warns of phishing emails pretending to be F5 BIG-IP zero-day security updates that deploy Windows and Linux data wipers. [...]
Microsoft has fixed a known issue causing Wi-Fi network connectivity problems on Windows 11 systems triggered by recently released cumulative updates. [...]
Microsoft has confirmed that some Windows 11 devices experience Wi-Fi connectivity issues after installing recent cumulative updates. [...]
The KB5033375 cumulative update released during the December 2023 Patch Tuesday causes Wi-Fi connectivity issues on some Windows 11 devices. [...]
Four vulnerabilities, one of which is rated critical, have been discovered in the Perforce Helix Core Server, a source code management platform widely used by the gaming, government, military, and technology sectors. [...]
Microsoft has released a troubleshooter tool to fix an issue where the HP Smart app would automatically install on Windows systems after renaming all printers to HP LaserJet M101-M106. [...]