Why Signal
- E2EE by default for 1:1, groups, voice/video.
- Open-source clients with active audits and community scrutiny.
- Modern privacy features: disappearing messages, view-once media, screen security, registration lock.
- Minimal metadata: designed to keep as little as possible.
Install
- Mobile: iOS App Store / Google Play (Signal Foundation).
- Desktop: macOS / Windows / Linux (pairs with your phone).
You register with a phone number; you can hide it from non-contacts and limit who can find you.
Recommended settings (2 minutes)
- Privacy → enable Registration Lock (PIN), Screen Security, and restrict who can find you by number.
- Safety Numbers → verify for sensitive contacts (tap name → View Safety Number).
- Disappearing messages → set a sensible default (e.g., 1 week) per chat.
- Calls → enable Always Relay Calls if you prefer hiding IPs (may reduce quality).
Verify it’s private
- Open a chat → compare Safety Numbers in person or via another channel.
- Send a disappearing message and confirm it vanishes on both devices.
- Desktop pairing: confirm the “Linked Devices” list only shows your machines.
Get Signal
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