# Slack privacy rating

Team messaging app with channels, direct messages, voice and video huddles, file sharing and integrations, owned by Salesforce.

## Summary

Slack scores 20 out of 100 (grade F) on the team chat criteria. It partly meets no ads or data sales and independent audit. It does not meet open source and no trackers or telemetry. It is based in the United States: Five Eyes member; subject to the US CLOUD Act.

- Website: https://slack.com
- Jurisdiction: United States. Five Eyes member. Subject to the US CLOUD Act.
- Platforms: Windows, macOS, Linux, Android, iOS, Web
- Home page trackers: Google Tag Manager, OneTrust (not scored), YouTube embed (not scored)
- Category: [Team chat](https://privacyratings.com/team-chat/)
- Grade: F (20/100)

## Criteria

| Criterion | Answer | Note | Evidence |
| --- | --- | --- | --- |
| Open source | No | Closed source. |  |
| No trackers or telemetry | No | The cookie policy lists third-party cookies such as Google Analytics and advertising pixels on its websites. | https://slack.com/trust/compliance/cookie-policy |
| No ads or data sales | Partial | Funded by subscriptions with no ads in the product, but the policy allows sharing identifiers with third-party advertisers to target Slack ads on other sites. | https://slack.com/trust/privacy/privacy-policy |
| Independent audit | Partial | Only a SOC 3 summary report is public; the full SOC 2 report is available on request. | https://a.slack-edge.com/d6e4a4e/marketing/downloads/security/Slack_SOC_3_2025_Report.pdf |

Source: https://privacyratings.com/team-chat/slack/
Edit: https://github.com/privacyratings/privacyratings.com/edit/main/ratings/team-chat/slack.md