Outage report · Partial outage
Sumsub outage on May 16, 2026
DDos attack
SeverityPartial outage
StartedMay 16, 2026, 07:30UTC
ResolvedMay 16, 2026, 13:37UTC
Duration6h 6m
What happened
Sumsub reported a partial outage starting May 16, 2026, 07:30 UTC, affecting API, API, API. It was marked resolved at May 16, 2026, 13:37 UTC.
- The incident lasted 6h 6m from first report to resolution.
- It was the 2nd longest of 3 significant outages Sumsub reported in the 12 months up to it.
- Sumsub had reported 1 other partial or major outage in the 90 days before it.
- 3 other vendors we track reported a significant incident within 12 hours of it.
Latest update from Sumsub
Our Team has succesfully concluded the incident resolved. Everything is now operational. The attack took place between 07:15 UTC and 8:00 UTC. During the attack, we received a spike of 20–30x increase in total requests. The attack is still ongoing; However, our Team has mitigated it for now and are working with Cloudflare on a more reliable permanent solution. If you have any questions, please, don't hesitate to contact Support.
What our independent monitoring saw
Our independent monitoring of Sumsub started after this incident, so this report is based on Sumsub's status page.
Other outages around the same time
Significant incidents other vendors reported within 12 hours of this one.
Sumsub's overall reliability
86.3/100
Sumsub has a reliability score of 86.3/100, with 99.83% effective uptime and 5 incidents over the last 90 days.
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