[$] Secure Boot certificate expiration is here

Date:
Wed, 01 Jul 2026 13:18:52 +0000

Description:
Linux users who have Secure Boot enabled on
their systems rely on certificates issued by Microsoft to verify the software used to boot a system is trusted by the user. One of those certificates expired
recently, but that will not cause systems that are able to boot to stop doing so. There are situations where the expiration may cause problems, however, and the window for relying on existing signed binaries is shorter than it might appear. Users and administrators will want to stay on top of these changes. Over
the last year, part of my job at Microsoft has been to work on this
problem. LWN wrote about the
certificate expiration in July 2025 , and this article follows up with where
we are now.

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Link to news story:
https://lwn.net/Articles/1079808/


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