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Bugzilla #1884568 Delayed Revocation

TWCA: Revocation delay for EV TLS certificates with invalid subject attribute order

RESOLVED FIXED Taiwan-CA Inc. (TWCA)
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AI Summary

TWCA reported a misissuance of 90 EV TLS certificates due to nonconforming subject attribute order. Although all affected certificates were required to be revoked within 5 days, 13 certificates were not revoked in time due to customer requests for delays, as they were used in critical applications. TWCA has since completed the revocation of all affected certificates and updated their user agreements to prohibit delayed revocations. They are also implementing measures to enhance customer awareness regarding the importance of timely certificate replacement and the risks associated with certificate pinning.

Model: gpt-4o-mini Generated: 2026-06-13 20:52 UTC Revised: 2026-06-16 18:14 UTC Confidence: 0.85 28 comments
Chronology
  1. 13 out of 90 mis-issued EV TLS certificates were not revoked in time.
  2. TWCA committed to stricter policies on revocation delays.
Thread Activity
  1. Taiwan-CA Inc. (TWCA) — TWCA reported the misissuance of 90 EV TLS certificates.
  2. Taiwan-CA Inc. (TWCA) — Certificates were revoked, but 13 were delayed due to customer requests.
  3. Taiwan-CA Inc. (TWCA) — TWCA acknowledged past errors and committed to not delaying revocation in the future.
Participants
Taiwan-CA Inc. (TWCA) Mozilla representative Sectigo
External References
Related Bugzilla IDs Mentioned
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