Houghton Mifflin Harcourt incident
Intermittent Service Degradation due to AWS Outage
Resolved after 23 hours 37 minutes, affecting Login and Login and 1 more, on October 20, 2025.
AWS service interruption has been resolved as of 10.20. HMH will continue to monitor for any residual impact as a result of this interruption.
Affected components
Update timeline
- monitoring Oct 20, 2025, 04:34 PM UTC
We are aware of an ongoing disruption to AWS services which could still be impacting some HMH products, such as some content or videos not loading as expected. AWS has indicated they are making progress on resolving the issue and we continue to monitor this event closely.
- monitoring Oct 20, 2025, 09:23 PM UTC
Impacts to some products and services will continue while AWS takes action to resolve the disruption on the impacted zone. We continue to monitor the situation and will provide another update as soon as possible.
- monitoring Oct 21, 2025, 12:15 PM UTC
AWS service interruption has been resolved as of 10.20. HMH will continue to monitor for any residual impact as a result of this interruption.
- resolved Oct 21, 2025, 04:12 PM UTC
This incident has been resolved.
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