Chainalysis experienced a critical incident on December 5, 2025 affecting KYT API and Reactor and 1 more component, lasting 4h 8m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- identified Dec 05, 2025, 09:08 AM UTC
We have identified an outage affecting all our products due to an unexpected outage with Cloudflare: https://www.cloudflarestatus.com/ We are working on a solution to reinstate access and will provide more details as soon as we have them. We have no workaround to share at this time. Next update at 11:00 UTC
- monitoring Dec 05, 2025, 09:17 AM UTC
Cloudfare has implemented a fix, and our products are back up and running. We will continue to monitor the system closely to ensure stability. If you are still experiencing delays, please reach out to [email protected]. Next update at 14:00 UTC
- monitoring Dec 05, 2025, 10:09 AM UTC
We are continuing to monitor for any further issues. Next update at 14:00 UTC
- resolved Dec 05, 2025, 01:17 PM UTC
After extensive monitoring over the past few hours, we are confident that the incident has now been resolved and all our systems are operating as expected. If you experience any issues, please reach out to [email protected].