VPNs, proxies, encrypted email, anonymous SIM cards, and privacy services.

https://signal.org
End-to-end encrypted messaging app with voice and video calls. Open source with the gold-standard Signal Protocol.

https://simplex.chat
First messenger without user identifiers. No phone number or username needed, fully decentralized with E2E encryption.

https://getsession.org
Decentralized encrypted messenger that requires no phone number or email to register. Routes messages through an onion network.

https://briarproject.org
Peer-to-peer encrypted messaging that can work over Tor, Wi-Fi, or Bluetooth. Designed for activists and journalists.

https://whitenoise.chat
Decentralized encrypted messaging protocol built on MLS (Messaging Layer Security) and Nostr relays. Supports group chats with forward secrecy and post-compromise security.