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security

There's a few chat applications which can be used to communicate:

Secure

  • SimpleX - Bit more secure then Signal, as it has built in privacy features at the protocol level (such as message padding). By default users /chats don't have constant identifiers either. Allows for anonymous profiles and supports multiple profiles.
  • Signal - Good replacement for normal “text messaging”. Share your username instead of phone number.
  • Delta Chat - Supports multiple profiles.

Less Secure

  • Keybase - Supports multiple profiles, allows managing teams. Roughly an alternative to discord/slack. Currently owned by Zoom. Keybase has access to metadata to understand who is talking to who. https://book.keybase.io/docs/chat/crypto#metadata

Treat As Public Chats

  • Matrix - Fluffychat client is recommended, as it supports multiple profiles. Setup a home server and disable federation to prevent metadata being copied around. Note Homeserver owners can join encrypted chats and impersonate users.
security.txt · Last modified: 2025/06/20 05:57 by fe80:d69e:c173:b6ef:2bb3:2bec:4a3c:e1a0 · Currently locked by: fe80:1ba0:181c:35ff:0726:3aff:1904:e1ca