# Expo: Website authentication outage

- Impact (vendor’s label): none
- Status: resolved
- Started: 2026-04-28 22:44 UTC · Resolved: 2026-04-28 22:44 UTC · Duration: 0 min
- Updates: 1
- [Vendor status page: https://status.expo.dev/incidents/18jjzl6xn7y4](https://status.expo.dev/incidents/18jjzl6xn7y4)
- [Company: Expo](https://rewindex.com/company/expo.md)

## Timeline of updates

- **resolved** 2026-04-28 22:44 UTC: Between 3:44 PM and 4:08 PM PDT, existing sessions on expo.dev were treated as invalid, and users were unable to sign back in. During this window, login attempts from the website failed. The issue has been resolved and users can now sign in normally. We're investigating the root cause.

_From the vendor’s published history: only the final update text is available for incidents before Rewindex began polling this page._


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Canonical: https://rewindex.com/company/expo/incidents/18jjzl6xn7y4 · Markdown: https://rewindex.com/company/expo/incidents/18jjzl6xn7y4.md · JSON: https://rewindex.com/api/v1/companies/expo/incidents/18jjzl6xn7y4 · Generated 2026-10-19T01:54:47.563Z