SECOM: No updated CRLs published for Cybertrust Japan SureMail CA G4
The Cybertrust Japan SureMail CA G4 failed to publish updated Certificate Revocation Lists (CRLs) for 13 consecutive days due to an operational error. This incident was identified when a support staff member was validating a certificate. The last CRL was published on August 20, 2025, and it expired on August 27, 2025, leading to non-compliance with RFC 5280 and S/MIME BR requirements. No end-entity certificates were revoked during this period. The issue was resolved with the publication of the CRL on September 3, 2025, and several corrective actions have been implemented to prevent future occurrences.
- Last CRL issued and published
- CRL expired, non-compliance began
- Non-compliance identified and CRL published