{"name":"Koaich Encrypted-Workspace & Messaging Competitor Matrix","description":"A structured comparison of encrypted-workspace and secure-messaging vendors across privacy-architecture attributes (key custody, end-to-end encryption surface, metadata posture, recovery model, and more). Compiled by Koaich; based on internal review of public documentation, not an independent audit.","version":"2026","license":"https://creativecommons.org/licenses/by/4.0/","license_short":"CC-BY-4.0","attribution":"Source: Koaich competitor matrix (https://koaich.com/compare/matrix-2026). Licensed CC-BY 4.0.","canonical":"https://koaich.com/compare/matrix-2026","methodology":"https://koaich.com/methodology","corrections":"hello@koaich.com","disclaimer":"Based on Koaich's internal review of publicly available vendor documentation. Not independently audited. Favorability flags reflect a privacy-architecture lens. Email corrections to hello@koaich.com; see the methodology page for sources.","vendor_count":10,"attribute_count":16,"vendors":[{"slug":"slack","name":"Slack","tagline":"The team chat standard."},{"slug":"notion","name":"Notion","tagline":"The workspace docs leader."},{"slug":"google-workspace","name":"Google Workspace","tagline":"Productivity at planetary scale."},{"slug":"microsoft-teams","name":"Microsoft Teams","tagline":"The enterprise default."},{"slug":"discord","name":"Discord","tagline":"Community chat — not a workspace tool."},{"slug":"signal","name":"Signal","tagline":"The encrypted messaging standard."},{"slug":"sms","name":"SMS","tagline":"The default text message on every phone."},{"slug":"facebook-messenger","name":"Facebook Messenger","tagline":"Meta's default chat app, now E2E by default."},{"slug":"linkedin","name":"LinkedIn messages","tagline":"The professional inbox Microsoft owns and reads."},{"slug":"whatsapp","name":"WhatsApp","tagline":"The default messaging app 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