Signal
More info
- Creator
- Moxie Marlinspike, Brian Acton
- Released
- Owner
- Signal Foundation (non-profit)
- Type
- Encrypted messenger
- License
- GPL / AGPL
- Website
- signal.org
- Source
- github.com/signalapp
- Wikipedia
- en.wikipedia.org
End-to-end encrypted messenger run by a non-profit — the gold standard for private communication.
Built on the Signal Protocol (Double Ratchet + X3DH + Curve25519), which WhatsApp and Facebook Messenger also licence. No ads, no metadata harvesting. WhatsApp co-founder Brian Acton donated $50M to start the Signal Foundation in 2018. The default choice for journalists, activists, and security people.