Salesforce Blocks AI Rivals From Using Slack Data

Slack, an instant-messaging service popular with businesses, recently blocked other software firms from searching or storing Slack messages even if their customers permit them to do so, according to a public disclosure from Slack’s owner, Salesforce.

The move, which hasn’t previously been reported, could hamper fast-growing artificial intelligence startups that have used such access to power their services, such as Glean.