Slack red flags & complaints

Verified public risk signal level for Slack: none (as of June 17, 2026).

No material public risk signals as of 2026-06-17.

Signals on file

None. We searched data breaches, court filings, BBB billing complaints, and support-rating trend lines — nothing material surfaced as of our last verification.

What customers criticise (separate from risk signals)

The free tier's 90-day message history limit is a significant constraint, effectively forcing growing teams to upgrade or lose access to past conversations.

If you’re reconsidering

See alternatives to Slack, or read the full Slack review.

Source: Top 11 risk-signal review, last checked June 17, 2026. We publish complaints, not compliments. File a new complaint.