← DigiCert cases
Bugzilla #1556948 Incident

DigiCert: Validation Scope Incident

RESOLVED FIXED DigiCert
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

DigiCert reported a validation scope incident where a feature allowed improper issuance of certificates due to a mismatch in domain validation. The issue was discovered on May 29, 2019, by a support engineer during customer assistance. Following an internal investigation, DigiCert identified the root cause and took immediate action, including revoking 679 problematic certificates and reissuing 390 others. The faulty feature was disabled, and a new domain validation system was developed to prevent future occurrences. The incident was resolved with the implementation of a consolidated validation process by November 4, 2019.

Model: gpt-4o-mini Generated: 2026-06-13 11:32 UTC Revised: 2026-06-16 18:59 UTC Confidence: 0.90 26 comments
Chronology
  1. DigiCert support engineer discovers validation mismatch.
  2. Investigation completed; 1,069 problematic certificates identified.
  3. New domain validation system fully deployed.
Thread Activity
  1. DigiCert — DigiCert provides detailed incident report and timeline of actions taken.
  2. DigiCert — Training on compliance policies completed successfully.
  3. DigiCert — DigiCert confirms successful deployment of the new validation system.
Participants
DigiCert Community commenter Fastly representative
External References
Similar Local Cases
#1563573 RESOLVED Incident Opened 2019-07-04 · Closed 2023-02-22 · 100% similar
DigiCert: Failure to disclose Unconstrained Intermediate within 7 Days
#1573937 RESOLVED Incident Opened 2019-08-14 · Closed 2023-02-22 · 100% similar
DigiCert / Verizon: Qualified 2019 Audit Statements
#1556906 RESOLVED Incident Opened 2019-06-05 · Closed 2023-02-22 · 96% similar
DigiCert: Apple: Non-compliant Common Name Length
#1397954 RESOLVED Incident Revocation Issue Opened 2017-09-07 · Closed 2023-02-22 · 96% similar
DigiCert / Siemens: Insufficient Serial Number Entropy
#1576013 RESOLVED Incident Opened 2019-08-23 · Closed 2023-02-22 · 95% similar
DigiCert: JOI Issue
#1647084 RESOLVED Self Reported Incident Incident Opened 2020-06-20 · Closed 2023-02-22 · 95% similar
DigiCert / Microsoft: inconsistent disclosure of externally-operated intermediate
#1397957 RESOLVED Incident Certificate Misissuance Opened 2017-09-07 · Closed 2023-02-22 · 95% similar
DigiCert / CTJ: Metadata in OU fields, Reserved IP Address
#1417771 RESOLVED Ca Documents Incident Opened 2017-11-16 · Closed 2024-06-30 · 94% similar
DigiCert: Symantec non-constrained/non-disclosed intermediate CA certificates

We use only essential cookies and local browser storage for preferences and security. See our Privacy Policy for details.

Confirm action