Outage in Slack

Intermittent trouble with file previews and sending messages for EKM users

Resolved Minor
October 22, 2025 - Started about 10 hours ago - Lasted about 1 hour
Official incident page

Incident Report

We're investigating a new incident.

  • Current impact to end users: Users may see inconsistent errors when attempting to send messages in Slack, and some file previews/thumbnails may have trouble loading.

We'll provide an update within 30 minutes including further details on current actions being taken.

Components affected
Slack Files Slack Messaging

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Latest Updates ( sorted recent to last )
about 9 hours ago - at 10/22/2025 04:00PM

Our work on this issue is still ongoing, but no major updates to provide at this time.Current status and actions being taken: We're currently working toward a path to fully resolve the issue, but continue to observe signs of improvement.We'll provide another update in 30 minutes until impact is resolved for all users.

about 9 hours ago - at 10/22/2025 03:25PM

We're continuing to investigate this issue, but have identified the root cause as being related to Enterprise Key Management (EKM) servicing issues. We are also observing some signs of improvement with message sending, but we continue to work toward a full resolution.Current status and actions being taken: We've identified the root cause and are focused on resolving the EKM servicing issues.Estimated time to resolution: None at this time.Scope: Enterprise orgs with EKM services enabled.Current impact to end users: Some users may experience trouble loading file previews/thumbnails and sending or receiving messages, including threads.Known workarounds: None at this time.We'll be back with another update in 30 minutes or sooner.

about 10 hours ago - at 10/22/2025 03:02PM

We're investigating a new incident.Current impact to end users: Users may see inconsistent errors when attempting to send messages in Slack, and some file previews/thumbnails may have trouble loading.We'll provide an update within 30 minutes including further details on current actions being taken.

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