The 15-Year Deadline: Microsoft Launches Massive “Secure Boot” Certificate Rotation Ahead of June 2026
ID: 3645de02-2976-58cb-b5e9-d741903d2107
STIX ID: report--3645de02-2976-58cb-b5e9-d741903d2107
Feed Name: securityonline.info
Microsoft is rotating new UEFI Secure Boot certificates ahead of the current certificates expiring in June 2026, delivering them via cumulative updates (initially to select Windows 11 24H2/25H2 devices) and expanding to supported Windows versions. Systems that do not receive these updates, especially EOL or unmanaged hardware, may face security and compatibility issues as Secure Boot–dependent software could fail; IT administrators should ensure routine updates or manually rotate certificates using Microsoft’s scripts.
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