Announcing Windows 11 Insider Preview Build 26200.5581 (Dev Channel)

Hello Windows Insiders, today we are releasing Windows 11 Insider Preview Build 26200.5581 (KB5055651) to the Dev Channel.

Changes in Dev Channel builds and updates are documented in two buckets: new features, impro

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Announcing Windows 11 Insider Preview Build 26120.3950 (Beta Channel)

Hello Windows Insiders, today we are releasing Windows 11 Insider Preview Build 26120.3950 (KB5055653) to the Beta Channel for Windows Insiders on Windows 11, version 24H2.

REMINDER:

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Analyzing CVE-2025-31191: A macOS security-scoped bookmarks-based sandbox escape

Microsoft uncovered a vulnerability in macOS that could allow specially crafted codes to escape the App Sandbox and run unrestricted on the system. We shared our findings with Apple and a fix was released for this vulnerability, now identified as CVE-2025-31191. We encourage macOS users to apply security updates as soon as possible.

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Pushing passkeys forward: Microsoft’s latest updates for simpler, safer sign-ins

Celebrate World Passkey Day with Microsoft! Join us in embracing passkeys for secure, passwordless sign-ins. Learn more about our commitment to a safer digital future.

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