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 benign looking update Dragon Boss pushed out in March 2025 established persistence via scheduled tasks and arranged for future payloads to be excluded from Windows Defender.
The Secure Boot refresh is one of the largest coordinated security maintenance efforts across the Windows ecosystem, Microsoft said. In other words, update those PCs soon.
Google, Meta, and Microsoft about half the time don't comply with requests to opt out of online tracking per a California law mandate, privacy watchdog finds.
Two recently fixed prompt injections in Salesforce Agentforce and Microsoft Copilot would have enabled an external attacker to leak sensitive data.
The deal aims to accelerate AI adoption, train workers, and develop cybersecurity partnerships — the latest move by a hyperscaler to compete for sovereign AI and data centers.
Elevation-of-privilege bugs accounted for more than half of the 165 vulnerabilities patched, with two zero-days in that mix.