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 released out-of-band security updates for 'Memory Mapped I/O Stale Data (MMIO)' information disclosure vulnerabilities in Intel CPUs. [...]
The developers of the BlackLotus UEFI bootkit have improved the malware with Secure Boot bypass capabilities that allow it to infected even fully patched Windows 11 systems. [...]
Microsoft has added two new utilities to the open-source PowerToys toolset to help Windows users paste text without formatting and make it easier to move the mouse across multiple screens or on ultra-wide monitors. [...]
Microsoft is investigating an ongoing outage that is blocking Exchange Online customers worldwide from accessing their mailboxes via any connection method or sending/receiving emails. [...]
Microsoft has addressed a Windows 11 22H2 known issue causing some apps not to be installed during Windows provisioning. [...]
Microsoft says the KB5022913 February 2023 non-security preview release is causing boot issues on Windows 11 22H2 systems due to incompatibility with some third-party UI customization apps. [...]
Microsoft has released the optional February 2023 optional cumulative update for all editions of Windows 11 22H2 with the newly announced Moment 2 features. [...]
Microsoft announced today that it's integrating the new AI-powered Bing Chat into the Windows 11 search box with the latest Windows feature update. [...]
Microsoft has released the Windows 11 22H2 'Moment 2' update, bringing many new and long-awaited features to the operating system. [...]
Microsoft announced today an early preview of Phone Link for iPhone users available to Windows Insiders running the latest Windows 11 builds. [...]
Microsoft is now force-installing the Microsoft Defender for Individuals application when installing or updating the Microsoft 365 apps. [...]
Microsoft has addressed a known issue behind unsupported computers being offered Windows 11 22H2 upgrades and being unable to complete the installation process. [...]
Microsoft's open-source PowerToys tool is a great way to customize your Windows experience. It comes with options to optimize app windows for big monitors, preview new image types in File Explorer, and more. [...]
Microsoft Edge's built-in VPN functionality could soon begin rolling out to users in the stable channel. Edge's VPN 'Edge Secure Network' uses Cloudflare and aims to protect your device and sensitive data as you browse, but remember it is not a proper replacement for your VPN. [...]