Microsoft is tightening one of Windows’ oldest trust assumptions, and the fallout could reach far beyond security teams. Beginning with the April 2026 security update, Windows will no longer trust legacy kernel drivers signed through the old cross-signed root program by default on Windows 11...
Microsoft is preparing one of the most consequential Windows kernel trust changes in years, and it lands at the intersection of security hardening, enterprise compatibility, and Microsoft’s broader effort to make Windows 11 feel more reliable. The company plans to stop loading kernel drivers...
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kernelcodeintegritykernel driver security
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