If the recent #0day attacks against Linux kernel+servers were launched against #chatmail relays, privacy of chatting with #deltachat is preserved. Why? Because we already assume the server could be actively hostile, and still not read or see any avatar, names or messages.

Since the March 2.48 zero-metadata releases relays/servers do not see cryptographic identities, and get no chance to launch "machine-in-the-middle" (MITM) attacks.

Delta Chat: Zero metadata, group descriptions, native audio/video calls and much more!

With the latest 2.48+ releases, a chat message reveals close to zero metadata to servers. For cryptographers and messenger enthusiasts, here are the key points on how we turned email very close to ...

(delta.chat)