← SECOM Trust Systems CO., LTD. cases
Bugzilla #1695786 Certificate Misissuance

SECOM: Unqualified domain name in SAN

RESOLVED FIXED SECOM Trust Systems CO., LTD.
AI Summary

SECOM Trust Systems CO., LTD. issued a certificate containing an unqualified domain name 'sgnwffw001' in the Subject Alternative Name (SAN) extension. This misissuance was identified on March 2, 2021, leading to the immediate revocation of the certificate. SECOM acknowledged the issue and committed to implementing corrective measures, including fixing the settings to prevent such occurrences in the future. The incident raised concerns regarding the adequacy of SECOM's domain validation processes and their understanding of the Baseline Requirements for Certificate Authorities.

Model: gpt-4o-mini Generated: 2026-06-13 21:01 UTC Confidence: 0.90
Chronology
  1. Certificate issued with unqualified domain name in SAN.
  2. Certificate revoked after identification of the issue.
  3. Settings adjusted to limit FQDN in SAN.
  4. CAA records lookup failure handling function implemented.
Participants
George [:fozzie] Hisashi Kamo Ryan Sleevi Paul Steinberg
External References
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