Team chat

• Slack vs. Microsoft Teams: Which Is More Secure for Regulated Teams in 2026

  Slack and Microsoft Teams compared on encryption, compliance certifications, data residency and admin controls, for teams that have to answer to an auditor.

• The best secure team chat apps for privacy-first teams in 2026

  A security-desk ranking of the most secure team chat apps in 2026, from default end-to-end encrypted Signal and Wire to self-hosted Element, Mattermost, and Rocket.Chat.