Scheduled FireLight Disaster Recovery (DR) Testing – UAT Only

Update timeline

1. monitoring Sep 11, 2026, 12:01 PM UTC

   **Reminder - Scheduled FireLight Disaster Recovery Testing** The disaster recovery (DR) testing is scheduled from 10:30 a.m. ET to 2:30 p.m. on Saturday, September 19. This DR testing will be performed with the UAT environment only. The production environment will not be impacted. Testing Details: Duration - The testing process will span approximately four hours to comprehensively test processes and procedures of the failover environment and validate that these processes function as intended in the DR region. System Impact - We expect UAT to be unavailable for approximately 60 minutes on Saturday, September 19, during the failover and failback processes. Functionality - All UAT functionalities are expected to operate as usual following failover to the DR location. IP Whitelisting - To ensure uninterrupted access and operation during DR testing or in the event of an actual DR failover, please ensure both the production IP address and the failover IP address are whitelisted in your environment. Production IP Address: 20.241.57.83 Failover IP Address: 20.225.104.92 Timeline: Saturday, September 19 10:30 a.m. ET – Failover UAT to New DR Location 2:00 p.m. ET – Failback UAT to Production Location 2:30 p.m. ET – DR Testing Complete We will monitor application operations and performance throughout testing and provide updates in accordance with the timeline above. If you have any questions regarding the upcoming DR testing, please submit a ticket in Jira, and a Hexure team member will assist you.

2. monitoring Sep 18, 2026, 07:18 PM UTC

   **Tomorrow - Scheduled FireLight Disaster Recovery Testing** The disaster recovery (DR) testing is scheduled to start tomorrow, Saturday, September 19, at 10:30 a.m. ET and will run until 2:30 p.m. ET. This DR testing will be performed with the UAT environment only. The production environment will not be impacted. Testing Details: System Impact - We expect UAT to be unavailable for approximately 60 minutes on Saturday, September 19, during the failover and failback processes. IP Whitelisting - To ensure uninterrupted access and operation during DR testing or in the event of an actual DR failover, please ensure both the production IP address and the failover IP address are whitelisted in your environment. Production IP Address: 20.241.57.83 Failover IP Address: 20.225.104.92 Timeline: Saturday, September 19 10:30 a.m ET – Failover UAT to New DR Location 2:00 p.m. ET – Failback UAT to Production Location 2:30 p.m. ET – DR Testing Complete

3. monitoring Sep 19, 2026, 02:30 PM UTC

   **Scheduled FireLight Disaster Recovery Testing** We are committed to providing you with a continuous stream of quality solutions. As part of that commitment and part of Hexure's business continuity and disaster recovery plan, we have an important FireLight update to share with you. This notification is to inform you about upcoming disaster recovery (DR) testing scheduled from 10:30 a.m. to 2:30 p.m. ET on Saturday, September 19. **Purpose of the DR Testing:** The purpose of this DR testing is to simulate a required failover to an alternative geographic location within our public cloud environment due to a geographic disruption caused by a man-made or natural disaster. This testing process ensures that we have a robust plan and procedures in place to provide continuous access and operations of the FireLight platform in the event of a real disaster or emergency. **Note:** This DR testing will be performed with the UAT environment only. The production environment will not be impacted. **Testing Details:** • **Duration** - The testing process will span approximately four hours to comprehensively test processes and procedures of the failover environment and validate that these processes function as intended in the DR region. • **System Impact** - We expect UAT to be unavailable for approximately 60 minutes on Saturday, September 19, during the failover and failback processes. • **Functionality** - All UAT functionalities are expected to operate as usual following failover to the DR location. • **IP Whitelisting** - To ensure uninterrupted access and operation during DR testing or in the event of an actual DR failover, please ensure both the production IP address and the failover IP address are whitelisted in your environment. o **Production IP Address** 20.241.57.83 o **Failover IP Address** 20.225.104.92 **Timeline** **Saturday, September 19** o 10:30 a.m. ET – Failover UAT to New DR Location o 2:00 p.m. ET – Failback UAT to Production Location o 2:30 p.m. ET – DR Testing Complete We will monitor application operations and performance throughout testing and provide updates in accordance with the timeline above. If you have any questions regarding the upcoming DR testing, please submit a ticket in Jira, and an Hexure team member will assist you.

4. monitoring Sep 19, 2026, 02:32 PM UTC

   **DR Testing Has Begun** The Hexure team has initiated the disaster recovery (DR) testing process. The failover process for UAT is in progress. We will provide an update once the failover is complete, and UAT is operational and ready for smoke testing.

5. monitoring Sep 19, 2026, 06:08 PM UTC

   **DR Testing Successfully Completed** The scheduled disaster recovery (DR) testing has been successfully completed. UAT has been restored to the primary environment and is back online. If you experience any issues following the DR testing, please submit a ticket in Jira, and our support team will follow up with you. We appreciate your patience and support as we complete the DR testing. Having a plan and process in place is critical to ensure we can provide our clients with reliable solutions and services. Thank you for your support and continued business.