Tagged “sectigo”

incidents October 21, 2026 TLS Radar Team 7 min read

Eight eMudhra Intermediate Certificates Were Compromised. What It Means for Your Site

Mozilla disclosed that the private keys of eight eMudhra intermediate certificates were compromised. Firefox blocked them within three hours, and eMudhra and Sectigo revoked all 16 copies. Which certificates are affected, why it matters even if you never used eMudhra, and what to check.

#ssl #tls #revocation #key-compromise #intermediate-certificate #emudhra #sectigo #mozilla #onecrl #ccadb #ca

guides October 8, 2026 TLS Radar Team 3 min read

What Is a Dual-Use Certificate, and How to Know if Chrome Will Reject My Certificate on March 15, 2027

A dual-use certificate lists both server and client authentication in the same certificate. Chrome's root program rejects one issued on or after March 15, 2027. Here's what the two settings mean, how to check your own certificate in one command, and what over 118 million already-issued certificates mean for you.

#ssl #tls #certificates #eku #chrome #sectigo #browser-compatibility #scanner

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