SecurityZDNetabout 4 hours ago
Windows security certificates expire June 24, 2026
1 min read
Four Microsoft security certificates expire today, June 24, 2026, affecting Secure Boot on Windows PCs. Users can check certificate status using the built-in Windows Security utility. Microsoft recommends saving a BitLocker recovery key as a precaution. The expiration impacts the Key Enrollment Key (KEK) used in Secure Boot verification.
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