Outage in Slack

Some users unable to sign in

Resolved Minor
November 20, 2025 - Started about 2 months ago - Lasted 41 minutes
Official incident page

Incident Report

Some users may experience trouble logging into Slack. We’re on the case and will provide another update once we have more details to share. We’re sorry for the disruption.
Components affected
Slack Login/SSO

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Latest Updates ( sorted recent to last )
about 2 months ago - at 11/21/2025 12:01AM

We’ve identified a database authentication change that we believe caused this issue. We’ve reverted this change and via testing, believe users can now log in as expected to Slack services. We are currently validating this and will provide an update as soon as we have more to share.

about 2 months ago - at 11/20/2025 11:30PM

Some users may experience trouble logging into Slack. We’re on the case and will provide another update once we have more details to share. We’re sorry for the disruption.

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