Sumsub incident
Transaction Monitoring, Payment Method Check Advanced issues
Sumsub experienced a notice incident on November 19, 2025, lasting 2h 44m. The incident has been resolved; the full update timeline is below.
Update timeline
- investigating Nov 19, 2025, 03:29 PM UTC
We are currently experiencing an issue affecting Transaction Monitoring and Payment Method Check Advanced (Crypto). Customers may see errors or experience slow verification time running Transaction Monitoring and/or Payment Method Check Advanced (Crypto) using Chainalysis and Crystal providers. Our technical teams are investigating the root cause and will provide an update as soon as possible.
- resolved Nov 19, 2025, 06:13 PM UTC
Root Cause: The issue was caused by significantly increased response times from the external provider API The system continued waiting for risk-scoring responses until reaching the maximum timeout, which led to slow queue processing and delays for handling of part of transactions. Next Steps: We will enhance our queue-management logic to better handle scenarios where third-party providers are involved in the scoring process.