TechCrunch Startup News A startup called Germ becomes the first private messenger that launches directly from Bluesky’s app
Feb 20, 2026
A new private messenger called Germ is integrated natively into Bluesky to add end-to-end encrypted chats. The launch flow, badge-driven app clip, and AT Protocol handle authentication are explained. Founders’ technical choices avoid phone-number requirements and focus on a messaging layer. Plans, beta feedback, community collaboration, and future pro features are discussed.
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Open Networks Enable Third-Party Encryption
- BlueSky integrated Germ to offer native end-to-end encrypted messaging inside its app, showing open networks let third parties add key features.
- Germ uses the AT Protocol and Messaging Layer Security to enable encryption without phone numbers.
Badge+App Clip Starts Encrypted Chats
- Germ users add a badge on BlueSky profiles which opens an iOS App Clip to start an encrypted chat instantly.
- The App Clip authenticates with an AT Protocol handle and prompts users to optionally download the full GermDM app.
No Phone Numbers, Stronger Privacy
- Germ avoids phone-number-based identity by leveraging AT Protocol handles for authentication.
- That design ensures Germ and BlueSky cannot decrypt users' messages.