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#9 SecurityWeek general October 12, 2026 at 07:53 UTC

Let’s Encrypt Cuts Default Certificate Validity to 64 Days Ahead of 45-Day Switch

By Ionut Arghire

AI Summary

Let's Encrypt announced it will cut default certificate validity to 64 days starting February 2027, ahead of a broader industry transition to 45-day maximum certificate lifetimes. Organizations relying on manual certificate renewal processes will face significantly higher operational burden and must prioritize automation tools like ACME clients to avoid service outages. This change affects all systems that use Let's Encrypt certificates and require proactive renewal pipeline updates.

Read full article → https://www.securityweek.com/lets-encrypt-cuts-def…

Relevance score: 74.0/100

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