# coreService Disruption on USA864

- Provider: [Salesforce](https://down.guide/salesforce)
- Level: confirmed
- Impact: Major outage
- lasted 2h 15m
- started 2026-10-23 01:25 UTC
- coreService
- usa864
- id: DWN-fbb5221dd9
- Official page: https://status.salesforce.com/incidents/20004515

## Root cause
> We will conduct a thorough investigation to determine the technical trigger, identify the underlying root cause, and implement preventive measures to reduce the risk of recurrence.

[Postmortem](https://status.salesforce.com/incidents/20004515)

## Updates from Salesforce
### 2026-10-23 05:20 UTC: update
We have resolved the issue that prevented users from logging in and accessing their orgs. We identified an issue introduced by a recent release that disrupted the creation of login sessions. We rolled back the affected release and confirmed that access has been restored. Users can now log in and access their orgs.
We sincerely apologize for the disruption and its impact on your business. We will conduct a thorough investigation to determine the technical trigger, identify the underlying root cause, and implement preventive measures to reduce the risk of recurrence.

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