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Bugzilla #1708934 Certificate Misissuance

Sectigo: Invalid postalCode field

RESOLVED FIXED Sectigo
This summary was auto-generated by AI and revised by me when needed — accuracy improves with each update. Always refer to the official Bugzilla thread as the authoritative source. If you spot an inaccuracy, let me know via the contact form.
AI Summary

Sectigo identified a compliance issue regarding the postalCode field in several certificates, where invalid values such as a series of zeros were used. The issue was reported on May 1, 2021, leading to an acknowledgment from Sectigo the following day. The CA investigated and found that 45 certificates issued to Hong Kong contained incorrect postal code information. Sectigo decided to revoke these certificates, with the revocation process completed by May 21, 2021. They also committed to not issuing certificates with invalid postal codes in the future and are reviewing other potentially affected certificates.

Model: gpt-4o-mini Generated: 2026-06-13 20:58 UTC Revised: 2026-06-16 18:49 UTC Confidence: 0.85 29 comments
Chronology
  1. Bug filed regarding invalid postalCode values in Sectigo certificates.
  2. Revocation of 45 certificates with invalid postalCode values completed.
Thread Activity
  1. Fozzie representative — Created bug report about invalid postalCode field in Sectigo certificates.
  2. Sectigo — Acknowledged receipt of the notification and promised a full report soon.
  3. Sectigo — Announced the decision to revoke certificates with invalid postal codes.
  4. Sectigo — Completed revocation of the identified certificates.
Participants
Fozzie representative Sectigo Community commenter Mozilla representative
External References
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