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 has resolved a known issue that caused Outlook Desktop to unexpectedly prompt users to reopen previously closed windows. [...]
Proof-of-concept exploit code has surfaced on GitHub for a critical authentication bypass vulnerability in Microsoft SharePoint Server, allowing privilege escalation. [...]
Chinese hackers stole tens of thousands of emails from U.S. State Department accounts after breaching Microsoft's cloud-based Exchange email platform in May. [...]
Malicious advertisements are now being injected into Microsoft's AI-powered Bing Chat responses, promoting fake download sites that distribute malware. [...]
Microsoft's new AI image generation Paint tool powered by OpenAI's DALL-E text-to-image model is now rolling out to Windows Insiders in Dev and Canary channels. [...]
Hackers are utilizing a new trick of using zero-point fonts in emails to make malicious emails appear as safely scanned by security tools in Microsoft Outlook. [...]
After almost three years, Microsoft has finally added the 'Never combine taskbar button' back to Windows, and it still doesn't work correctly. [...]
Microsoft has started rolling out the next major version of its operating system, Windows 11 23H2, to Insiders enrolled in the Release Preview Channel for enterprise testing before the general release later this year. [...]
Microsoft has released the September 2023 preview update for Windows 11, version 22H2, which adds frequently visited websites to the Start menu and addresses 24 issues. [...]
Microsoft has released the September 2023 preview update for Windows 11, version 22H2, which adds frequently visited websites to the Start menu and addresses 24 issues. [...]
Microsoft has released the Windows 11 22H2 'Moment 4' update, bringing 150 new features, including new AI-powered versions of Paint, ClipChamp, Snipping tool, and the new Microsoft Copilot. [...]
Today's Windows 11 update includes several security improvements, including a new passkeys management dashboard designed to help users go passwordless more easily and tools to reduce the attack surface. [...]