Do Son TWCA announces emergency TWCA certificate revocation after researchers discovered non-compliant serial number entropy across ten intermediate CAs.
Certificate Revocation
OpenAI revokes legacy macOS certificates after a malicious @Axios library incursion. Update ChatGPT and Codex by May 8, 2026, to avoid software failure.
TrustAsia revoked 143 LiteSSL certificates in Jan 2026 after a critical ACME vulnerability allowed domain hijacking. See if your site is affected.
Firefox is switching to CRLite for certificate revocation, a major change that improves security and privacy by eliminating the need for real-time OCSP queries.