Outage in Halo

AWS Major Service Outage

Resolved Minor
October 20, 2025 - Started 8 days ago - Lasted about 13 hours

Incident Report

We are aware of a major AWS outage affecting the us-east-1 region. It is currently not affecting Halo service, but may progress throughout the day as it comes closer to working hours. We are working to ensure that it does not affect any US customers.

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Latest Updates ( sorted recent to last )
8 days ago - at 10/20/2025 08:47AM

We are aware of a major AWS outage affecting the us-east-1 region. It is currently not affecting Halo service, but may progress throughout the day as it comes closer to working hours. We are working to ensure that it does not affect any US customers.

8 days ago - at 10/20/2025 09:00AM

Email processing and scheduled actions are currently affected. We are working to bring these back.

8 days ago - at 10/20/2025 09:32AM

Email processing and scheduled actions have been restored.

8 days ago - at 10/20/2025 10:48AM

Automatic scaling services could be hampered after the following AWS Health update:

[03:35 AM PDT] The underlying DNS issue has been fully mitigated, and most AWS Service operations are succeeding normally now. Some requests may be throttled while we work toward full resolution. Additionally, some services are continuing to work through a backlog of events such as Cloudtrail and Lambda. While most operations are recovered, requests to launch new EC2 instances (or services that launch EC2 instances such as ECS) in the US-EAST-1 Region are still experiencing increased error rates. We continue to work toward full resolution. If you are still experiencing an issue resolving the DynamoDB service endpoints in US-EAST-1, we recommend flushing your DNS caches. We will provide an update by 4:15 AM, or sooner if we have additional information to share.

8 days ago - at 10/20/2025 12:15PM

Amazon have resolved the issue and their core systems are back online now. No Halo application downtime has been reported. Issue affected email processing from 6:30am - 930 am UTC but is now operational again.

8 days ago - at 10/20/2025 06:54PM

AWS Service Update

After an earlier fix, the issue has returned to degraded in the AWS health dashboard, and is causing delays with automations and task scheduling.

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