Cornerstone experienced a major incident on October 20, 2026 affecting Uptime and Uptime and 1 more component, lasting 5h 51m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Oct 20, 2026, 09:13 PM UTC
Our Engineering teams are performing an Emergency Change and as a result FTP across UK Production environment is currently inaccessible. We are working to restore access and will update here as soon as complete.
- investigating Oct 20, 2026, 10:58 PM UTC
Engineering is continuing to work on the Emergency Control Change As part of this work we have needed to pause Data Feeds and they will resume once this work is completed. We will continue to keep this page updated at least every 2 hours or as we get new information. We apologize for any inconvenience.
- investigating Oct 21, 2026, 01:00 AM UTC
Our Engineering teams are continuing to work on restoring FTP access across the UK Production environment. The issue remains under investigation, and we will provide a further update as soon as more information becomes available.
- resolved Oct 21, 2026, 03:04 AM UTC
Our Engineering team has confirmed that FTP access across the UK Production environment has been restored. We have also performed checks on our side, and no further issues have been observed so far.