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Bugzilla #1533655 Certificate Problem Report

DigiCert: Apple: Non-compliant Serial Numbers

RESOLVED DigiCert
AI Summary

DigiCert identified that it had issued certificates with non-compliant serial numbers due to an issue with its CA software. The problem was detected on March 6, 2019, and was fixed within 24 hours. Affected certificates included approximately 878,000 TLS Server certificates and 2,400 S/MIME certificates. The CA has since revoked the majority of the impacted certificates and is working on a timeline for the remaining revocations.

Model: gpt-4o-mini Generated: 2026-06-13 11:26 UTC Confidence: 0.95
Chronology
  1. Issue with non-compliant serial numbers detected
  2. Stopped issuance of non-compliant certificates
  3. Commenced revocation of impacted certificates
  4. All valid impacted certificates revoked
Participants
Apple CA Ryan Sleevi
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