2023 ca

About this tag
The 2023 ca tag covers Microsoft's transition to a new family of Secure Boot certificates, referred to as the 2023 CA, which will replace the original certificates issued around 2011 that begin expiring in mid-2026. Discussions focus on the coordinated update process involving Windows UEFI certificate rollouts, firmware readiness from OEMs, and updated recovery media to maintain Secure Boot trust and avoid unbootable systems. Key themes include the expiration timeline, the need for testing, and the impact on pre-boot security for Windows devices.
  1. Secure Boot Certificates Expiring in 2026: Transition to 2023 CA Family

    Microsoft’s long-lived Secure Boot certificates issued around 2011 are scheduled to begin expiring in mid‑2026, and the operating-system and firmware ecosystem is in active, coordinated motion to replace those keys with a new “2023” certificate family to avoid a calendar-driven break in Secure...
  2. Secure Boot 2023 CA Update: Windows UEFI Certificates Rollout Explained

    Microsoft’s Secure Boot update FAQ makes clear that a coordinated, multi-step transition is now live: Windows will roll new 2023 signing certificates into UEFI variables and update the Windows boot manager to preserve Secure Boot protection ahead of the 2011 CA expirations, but the rollout...