Let’s Encrypt Halts Certificate Issuance After Cross-Signed Root Certificate Incident

Let’s Encrypt temporarily suspended all certificate issuance on May 8, 2026, after engineers identified a critical issue involving a cross-signed certificate linking the organization’s Generation X root to its upcoming Generation Y root infrastructure. The incident triggered a complete shutdown of issuance across both production and staging environments before services were restored within hours. At […] The post Let’s Encrypt Halts Certificate Issuance After Cross-Signed Root Certificate Incident appeared first on Cyber Security News.