One platform, its own words
Does Slack sell data? What its privacy principles say
Updated
Slack's privacy principles and privacy policy answer the questions a company asks before licensing its own workspace: who owns the messages, and what Slack itself does with them.
Who owns the workspace
Slack's privacy principles say customers own their own customer data, and its user terms that the customer data is owned by the customer under the contract it signed with Slack.
Source: Workplace chat software data terms
Aggregated and de-identified data
Slack aggregates and disassociates customer data so that its use to update the services never identifies a customer or person as the source. Its privacy policy says it may disclose or use aggregated or de-identified information for any purpose.
Source: Workplace chat software data terms
Training and the opt-out
Customer data helps train Slack's global models unless the customer opts out, by an email to Slack, and Slack will not use it to train generative AI models without affirmative opt-in consent.