TECH NEWS

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

Open Certificate Authority (CA) Let’s Encrypt is taking the first step towards reducing the validity period of the certificates it issues.

Beginning February 10, 2027, it will issue certificates with 64-day lifetimes by default, in preparation for 45-day lifetimes planned for 2028.

In line with the CA/Browser Forum Baseline Requirements, the shorter certificate validity period is expected to improve security on the web by making revocation more efficient and limiting the scope of compromise.

All publicly trusted CAs will make similar changes, Let’s Encrypt noted in a December 2025 blog, when it revealed the planned timeline for switching to 45-day certificates.

Last week, the CA announced that, after February 10, 2027, all newly issued or renewed certificates will have a 64-day validity period, with the last 90-day certificate expected to expire on May 11, 2027.

This week, Let’s Encrypt will start issuing 64-day certificates in its staging environment for testing...

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Global Cybersecurity Leader Michael H. Lashlee Joins Bloo Advisory Board to Strengthen Enterprise AI Security

Satya Nadella says companies should treat AI models as insider risks

China agrees to curb hybrid car exports to the EU after Beijing talks

Drone attack shuts a third Yandex data centre in Russia in 4 days