Introduction
On August 11th, between 11:30 CEST and 12:15 CEST, Tink experienced a technical issue that impacted Payments and Account Information products across multiple markets. During the incident, some end-users encountered issues with the availability of certain Tink products.
Root Cause Analysis
After a thorough investigation, it was identified that there was an error in one of the third-party libraries used to read feature flags, which led to an unrecoverable runtime error in a critical service. This, in turn, caused degradation in the availability of our products.
Remediation
Once the issue was identified, all affected instances were restarted. To mitigate the issue, a full restart was required, which contributed to the extended downtime for some products.
Follow-up actions
To prevent similar issues in the future Tink will be implementing the following actions: