The Complete SimpleX Chat Hardening Guide (2025–2026)
SimpleX is the only messenger with no user IDs at all. Here's how to harden it — profiles, relays, Tor, and self-hosting — for real metadata privacy.
Topic
Messaging
A collection of 5 issues
Signal Messenger: 2026
Signal is the closest thing to a trustworthy commercial messaging app that exists. End-to-end encryption is on by default, the protocol is open and audited, and the organization behind it collects almost nothing about you.
Wormhole Secure File Transfer
Secure file transfer. A secure way to send large files to various people.
Signal Chat Security
Encryption protects the channel, not the membership. In a shared Signal room the real risk is who got in and how long their words stick around — and both of those are choices someone has to make on purpose.
Signal Messenger Settings
Signal out of the box is good, not hardened. The gap is a short list of settings, starting with the one that stops someone porting your number and walking off with your account.