What Slack publishes about its security, privacy and use of your data, with a link to the page each fact came from. Checked October 10, 2026.
"Not found" means our reader didn't find it on the public pages it could read; the vendor may still publish it.
Statements differ between pages
Slack's own words (slack.com/trust/ai-principles):
Your Customer Data (like messages and files) is never used to train any LLMs.
Vendors often have different rules for consumer or free plans and for business or enterprise plans. Check the terms for the plan you would use.
We build and train models so that they cannot reproduce Customer Data, and the outputs of the models cannot be linked to data from a specific customer.
slack.com/trust/ai-principles
Our approach to AI is grounded in these three principles: Your data is never used to train large language models.
slack.com/trust/ai-principles
Different pages say different things. This is often a split between business plans and free or consumer plans. Read each quote for the plan you would use.
| Certification or report | Mentioned on |
|---|---|
| SOC 2 | slack.com/trust/compliance |
| SOC 3 | slack.com/trust/compliance |
| ISO/IEC 27001 | slack.com/trust/compliance |
| ISO/IEC 27017 | slack.com/trust/compliance |
| ISO/IEC 27018 | slack.com/trust/compliance |
| ISO/IEC 27701 | slack.com/trust/compliance |
| ISO/IEC 42001 | slack.com/trust/compliance |
| HIPAA | slack.com/trust/compliance |
| FedRAMP | slack.com/trust |
| TISAX | slack.com/trust/compliance |
| IRAP | slack.com/trust/compliance |
| C5 | slack.com/trust/compliance |
Privacy laws and frameworks mentioned: GDPR, CCPA/CPRA. These are laws the vendor says it follows, not certifications.
A certification on a website is a claim. For anything sensitive, ask Slack for the SOC 2 report or ISO certificate.
Our reader didn't find a subprocessor list on Slack's public pages. It may be published somewhere we couldn't reach, such as a trust portal that needs JavaScript or a login. Ask Slack for it if you need it.
| SSO / SAML | Not found |
| SCIM provisioning | Not found |
| Multi-factor authentication | Not found |
| Encryption at rest | Not found |
| Encryption in transit | Not found |
| Penetration testing | Not found |
| Bug bounty / disclosure program | Not found |
| Audit logs | Not found |
| Data residency | Mentioned United States, US, United Kingdom, Canada, Ireland, India, France |
| security.txt contact | https://hackerone.com/slack/ |
| Trust / security center | slack.com/trust |
| Privacy policy | slack.com/trust/privacy/privacy-policy |
| Subprocessor list | Not found |
| Data processing agreement (DPA) | slack.com/terms-of-service/data-processing |
| AI policy | slack.com/trust/ai-principles |
| Terms | Not found |
| Status page | slack-status.com |
| Check | Points | Result |
|---|---|---|
| Security or trust page | 15 | Yes |
| Certifications listed | 20 | Yes |
| Privacy policy | 10 | Yes |
| Subprocessor list | 15 | No |
| DPA available | 10 | Yes |
| AI training policy stated | 15 | Yes |
| security.txt contact | 5 | Yes |
| Status page | 10 | Yes |
The score measures how much of a standard security review our reader could answer from Slack's public pages. It is not a rating of how secure Slack is, and a "No" can mean the document exists where our reader couldn't see it.
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Source: Slack's own public website (6 pages read on October 10, 2026). Stormap is not affiliated with Slack. Facts are what the vendor publishes about itself; certifications are claims, not verified audit reports. Something wrong or out of date? Pages are re-checked every two weeks.