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.
Python scripts were used to test malware against endpoint detection and response agents from Sophos, CrowdStrike, and Windows Defender.
A disabled security setting meant to protect authentication across Android versions of key apps like Word, PowerPoint, and Excel paved the way for attackers to steal logins and data.
A threat actor got a near-continuous view into an influential finance executive's email inbox, thanks to clever use of legitimate, native Windows tools.
Once targeting just Microsoft 365, the phishing-as-a-service platform now aims at AWS, Okta, and Russian platforms, while relying on device code phishing.
After a disgruntled security researcher published several zero-day exploits in recent weeks, Microsoft seemingly indicated criminal charges were in order.