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Secure Boot Keys Are Expiring Soon — Windows and Linux Users Need to Act Now
Ars Technica·Thursday, 18 June 2026
A deadline is approaching for updating Secure Boot keys, the cryptographic keys that protect a computer's boot sequence from tampering. Both Windows and Linux users are affected and need to update before the keys expire.
Why It Matters
Anyone running a Windows or Linux machine — which covers the vast majority of the world's computers — risks security vulnerabilities if they miss this update deadline.
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