Notifications
Important customer notifications involving our services and the platforms they run on.


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To align with CA/B Forum compliance requirements and provide a margin of safety before the official September 15 enforcement deadline, Sectigo will transition to enforcement mode for Multi-Perspective Issuance Corroboration (MPIC) on September 13, 2025.
As of March 1, 2021 Sectigo will remove street address and zip/postal code information from all public certificates.
This week Microsoft disclosed the existence of a critical vulnerability in how Windows operating systems validate ECC-based x.509 certificates and released patches for affected versions that are supported.
On January 14, 2019, we started the next planned stage of our brand transition from Comodo CA to Sectigo, issuing new customer certificates from Sectigo-branded issuing CAs under our widely trusted USERTrust root CAs.