Is Sumsub Down?

International TIN Validation is fully operational again. From 15:00 UTC on October 28 to 09:40 UTC on October 29, an issue with our upstream data service caused most checks to fail. Checks have been stable since recovery, with no further errors observed. --- [2026-10-29T10:22:57.446Z] (monitoring) The International TIN Validation service has been restored, and checks have been processing normally since 09:40 UTC on October 29. Clients who temporarily paused verifications relying on this check can resume them. We are monitoring the service to make sure it remains stable. --- [2026-10-29T08:16:42.250Z] (identified) We are experiencing an issue with International TIN Validation checks. Since October 28, 2026, 15:00 UTC, requests to our upstream data service have been failing intermittently and most TIN validation checks currently return errors. As a result, verifications that rely on International TIN Validation should be temporarily paused. All other Sumsub services are operating normally. We are working with them to restore the service and will post an update as soon as we have more information.

Description: On October 12, 2026, between 08:28 and 08:45 UTC, a technical issue on our side affected face matching. During this time, applicants whose verification included a face match check were asked to resubmit their documents with the “Bad face matching” reason. The issue has been fixed, and face matching works as expected. What to do: No action is needed on the applicant’s profile. When affected applicants return to verification, they will see a message that their face is not clearly visible and will be asked to resubmit their identity document and selfie. After that, they will be verified as usual. You may want to let these applicants know they need to complete verification again. We apologize for the inconvenience.

We are continuing to work on a permanent solution and will keep you posted. Our team is developing a technical solution and remains in direct contact with the affected telecom providers. Clients whose applicants are impacted are encouraged to contact Support with a reference to this incident to discuss available options for their integration. --- [2026-10-27T12:24:06.194Z] (identified) We are continuing to work on the connectivity issues affecting some end users in Vietnam. Our team is currently developing a technical solution on our side and remains in direct contact with the affected telecom providers to resolve the blocking. There are no further updates at this time. The workaround remains available: affected users can switch to a different network (for example, mobile data from another provider) or use a VPN to complete verification. We will keep you posted. --- [2026-10-15T14:22:51.117Z] (identified) We are continuing to work on the connectivity issues affecting some end users in Vietnam. Our team is engaging with the affected internet providers individually to determine the cause of the blocking and to restore access. There are no further updates at this time. The workaround remains the same: affected users can switch to a different network (for example, mobile data from another provider) or use a VPN to complete verification. Clients with VPN/proxy restrictions enabled may want to review flagged applicants from Vietnam during this period. We will keep you informed and post the next update as soon as there is meaningful progress. --- [2026-10-05T12:35:14.419Z] (identified) Some internet providers in Vietnam are currently blocking connections to our services. As a result, some end users in Vietnam may be unable to load the verification flow or finish the liveness/selfie step. The impact is limited to a small number of users on the affected networks. As a workaround, affected users can switch to a different network (for example, mobile data from another provider) or use a VPN to complete verification. Clients with VPN/proxy restrictions enabled may want to review flagged applicants from Vietnam during this period. We are investigating the cause internally. We will post updates on this incident weekly, and sooner if there is significant progress. --- [2026-10-02T20:40:00.304Z] (investigating) We are investigating reports of connectivity issues affecting some end users in Vietnam. Affected users may fail to load the verification flow or the liveness/selfie step, or get connection errors in the Mobile or Web SDK. Verification from other regions or countries is not affected. We will post an update as soon as we have more information.