# Keeper: EU Region login API errors

- Impact (vendor’s label): major
- Status: postmortem
- Started: 2025-09-10 15:42 UTC · Resolved: 2025-09-10 15:49 UTC · Duration: 7 min
- Updates: 3 · Affected components: Keeper Infrastructure (EU Data Center) - Keeper Web Vault (EU), Keeper Web Vault (EU)
- [Vendor status page: https://stspg.io/p6vlghlxh5vy](https://stspg.io/p6vlghlxh5vy)
- [Company: Keeper](https://rewindex.com/company/keeper.md)

## Summary

Keeper reported a major EU Authentication API incident affecting Keeper Web Vault (EU), with customers experiencing failed authentication attempts. It started at 2025-09-10 15:42 UTC and was resolved at 2025-09-10 15:49 UTC; the computed duration was 6 min. No specific cause or fix was stated. _(machine-written, sol)_
## Timeline of updates

- **identified** 2025-09-10 15:42 UTC: We are aware of Auth API errors in EU region and we have identified the isssue. The issue will be resolved shortly.
- **resolved** 2025-09-10 15:49 UTC: The issue with Auth API errors in the EU region has been resolved. Additional details will be posted in the postmortem shortly.
- **postmortem** 2025-09-26 16:24 UTC: On \*\*September 10 at 8:42 AM PDT\*\*, our monitoring detected elevated errors with the \*\*Auth API in the EU region\*\*. The issue was identified promptly and fully resolved by \*\*8:49 AM PDT\*\*. Total impact duration was approximately \*\*7 minutes\*\*. \#\#\# Impact \* \*\*Region affected:\*\* EU \* \*\*Service affected:\*\* Authentication API \* \*\*Customer impact:\*\* Customers in the EU experienced failed authentication attempts during the incident window. \#\#\# Timeline \\(PDT\\) \* \*\*08:42\*\* – Incident detected. Elevated Auth API errors in the EU region reported. \* \*\*08:43\*\* – Engineering and DevOps teams engaged. \* \*\*08:46\*\* – Root cause isolated to a Terraform-related configuration change involving a VPC endpoint. \* \*\*08:49\*\* – Configuration change rolled back; Auth API errors resolved. \#\#\# Root Cause The outage was caused by a configuration change in our production tenant during an ongoing Terraform migration. As part of the migration, a new VPC endpoint was being added to production environments. During Terraform apply, a subnet association was also being created. A network disruption occurred between the creation of the VPC endpoint and the subnet association \\(behavior not seen in prior testing\\) leading to temporary Auth API connectivity failures in the EU region. A new Terraform migration plan has been created that eliminates the possibility of disruption.

## Rewindex changes for this incident

- 2025-09-10 15:42 UTC: [Major incident: EU Region login API errors](https://rewindex.com/change/i91d03acaf53c07.md)


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Canonical: https://rewindex.com/company/keeper/incidents/21mpssbf4tmn · Markdown: https://rewindex.com/company/keeper/incidents/21mpssbf4tmn.md · JSON: https://rewindex.com/api/v1/companies/keeper/incidents/21mpssbf4tmn · Generated 2026-10-18T12:20:22.148Z