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Let's Encrypt mandates 64-day certificate validity from February 2027
The CA will shorten SSL/TLS certificate lifespans to 64 days starting in February 2027, requiring developers to update automation tools.
Everything TechSec Observer has reported about SSL/TLS: 2 stories, newest first. Part of our Tech News coverage.

The CA will shorten SSL/TLS certificate lifespans to 64 days starting in February 2027, requiring developers to update automation tools.

Certificate failures often stem from misconfigured chain ordering or hidden intermediate expiry dates rather than the end-entity certificate itself, causing silent trust breaks.