Slack incident
Users unable to access Slack using various browsers
Slack experienced a minor incident on February 18, 2026 affecting Connectivity, lasting 1d 13h. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- identified Feb 18, 2026, 10:44 AM UTC
We're aware of an issue where users using specific antivirus software can't access Slack while using a Chrome browser. As a result, users may encounter connection errors preventing them from logging in or accessing their Slack workspaces. We're investigating the cause of this connectivity issue. We'll provide an update as soon as additional information becomes available.
- identified Feb 18, 2026, 12:26 PM UTC
We've identified that the issue isn't unique to Chrome, and that the conflict with antivirus software can occur across multiple browser versions. Thanks for sticking with us as we continue to investigate.
- investigating Feb 19, 2026, 01:24 AM UTC
We're continuing to investigate this issue. We'll keep you updated as we learn more.
- identified Feb 19, 2026, 07:57 PM UTC
We've identified that users can add their Slack workspace URLs to the trusted URLs in their antivirus application as a viable workaround. Thanks for sticking with us as we continue to investigate. We'll provide an update as we learn more.
- resolved Feb 20, 2026, 12:24 AM UTC
Current status and recent actions taken: Further investigation of this issue has determined that Slack systems and services are operating within specifications and that the issue is due to a conflict with some antivirus applications. Scope: Some users may have experienced issues accessing Slack services via their web browser due a conflict with their antivirus. Required resolution steps: Users should add their Slack workspace URL to the trusted URLs in their antivirus application. We apologize for any inconvenience this brought to your day.