Nucleus Security experienced a critical incident on November 18, 2025 affecting AU Platform 1 and US Trial Platform 1 and 1 more component, lasting 6h 5m. The incident has been resolved; the full update timeline is below.
Affected components
AU Platform 1US Trial Platform 1UK Platform 1help.nucleussec.comEU Trial Platform 1AE Platform 1AU Platform 2EU Platform 1US TunnelUS Platform 1
Update timeline
- investigating Nov 18, 2025, 01:05 PM UTC
Our WAF/CDN provider, Cloudflare, is having major global issues. Instances are starting to come back online and we are monitoring the situation. Updates to follow.
- monitoring Nov 18, 2025, 01:07 PM UTC
A fix has been implemented and we are monitoring the results.
- identified Nov 18, 2025, 01:07 PM UTC
The issue has been identified and a fix is being implemented.
- identified Nov 18, 2025, 01:27 PM UTC
We are continuing to work on a fix for this issue.
- monitoring Nov 18, 2025, 02:49 PM UTC
Cloudflare has announced a fix and we are monitoring.
- resolved Nov 18, 2025, 07:11 PM UTC
This incident has been resolved.