Chunghwa Telecom: Delayed revocation for bug 1951415
Chunghwa Telecom (CHT) reported a delayed revocation incident involving four TLS certificates that were not revoked within the required 24-hour period as specified in TLS BR 4.9.1.1 Item 5. The issue arose from a misunderstanding of the relevant policies during a large-scale migration, where CAA checks were inadequately performed. Although the majority of the affected certificates were revoked on time, the delay in revocation of these four certificates constituted a compliance violation. CHT has since completed the revocation and implemented measures to improve their compliance processes, including retraining staff and enhancing communication with subscribers. The case has been resolved and is now closed.
- Non-compliance start date identified
- Non-compliance identified date confirmed
- Delayed revocation of certificates completed
- Closure report submitted and case resolved
- Cht representative — Preliminary incident report submitted, acknowledging delayed revocation.
- Cht representative — Full incident report provided detailing the causes and timeline of the incident.
- Google representative — Request for CHT to submit a closure report.
- Cht representative — Closure report submitted, detailing remediation actions taken.