# coreService Disruption on USA228, USA316, USA328, USA604…

- Provider: [Salesforce](https://down.guide/salesforce)
- Level: confirmed
- Impact: Major outage
- lasted 4h 53m
- started 2026-10-23 01:25 UTC
- coreService
- usa228, usa316, usa328, usa604
- id: DWN-fdd981f6fa
- Official page: https://status.salesforce.com/incidents/20004519

## Updates from Salesforce
### 2026-10-23 06:21 UTC: update
We resolved an issue that prevented users from logging in. We identified an issue with a recent release that prevented login sessions from being created. We deployed a fix forward, and access is now restored. Users can log in and open their orgs again. 
We apologize for how this incident affected you and your business. We will undertake a full investigation of the incident, establishing the technical trigger, the underlying cause, and preventive action to avoid a repeat in the future.

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