Brillium Outage History

Select customers experienced a brief service interruption due to abnormal external activity. The team addressed the issue promptly, and normal service was restored. We are continuing to strengthen our monitoring and protective controls to further improve platform resilience.

During the investigation, the system operations team discovered that Assessment Builder was unable to establish a connection to the database systems. As a result, assessment authoring and delivery were impacted for approximately 1 hour and 15 minutes. No impact was observed on the Administration, Customer Management, or Talent applications. This issue appears to have been within the internal systems and the issue has been resolved.

Our investigation revealed that at approxiamately 2025-09-23T12:29:10Z \(UTC\) we experienced a temporary service disruption caused by an unexpected and extreme surge in network traffic. At peak, our systems were servicing over 20,000 simultaneous requests per second, which impacted Application Builder performance for a significant segment of our customers. Initial analysis of our Application Firewall \(AF\) logs shows that requests were valid and there is no indication of malicious activity. Our System Operations team reviewed and refreshed affected systems to restore system services performance and availability. We will continue to investigate the root cause data and apply additional operational enhancements aimed at improving the platform’s ability to handle unusual activity of this nature.