An issue with a TLS certificate impacted customers using the Tunnel but did not affect customers using DMA. We experienced system instability for around 50 minutes. The issue is related to the expiry of a TLS certificate, which is normally automatically renewed by our processes.
Our Infrastructure and Support teams were notified of the incident and immediately began investigating the cause. The automation responsible for renewing this specific certificate was identified as the root cause of the incident. The team worked to replace manually the expired certificate with a new one so customers can use the tunnel again without disruption. The code responsible for the certificate renewal is now being reviewed to avoid this bug from happening again.