Root Cause Analysis:
The core issue was traced back to an overlooked renewal of the SSL certificate. Essential renewal notifications were inadvertently directed to our spam folder, resulting in a missed update of the certificate. This oversight led to the service interruption experienced by our users.
Impact:
During the disruption, users encountered difficulties in accessing our services. We acknowledge the inconvenience caused by this incident and deeply regret the impact on our users' experience.
Resolution and Prevention:
Upon identification of the root cause, we have implemented a shift to DNS validation for future SSL certificate renewals. This change introduces a fully automated process, significantly reducing the likelihood of similar incidents in the future.