# Signal

Tool · [Standard tools and platforms](https://ecosystem.samcarlton.com/tools)

Also called: Signal app, Signal messenger, Signal Messenger

A messaging app for texts, calls and groups that [encrypts](https://ecosystem.samcarlton.com/encryption) messages from end to end. It is run by a [nonprofit](https://ecosystem.samcarlton.com/nonprofit) and is known for [privacy](https://ecosystem.samcarlton.com/data-privacy).

**For example:** A [founder](https://ecosystem.samcarlton.com/founder) moves sensitive [conversations](https://ecosystem.samcarlton.com/session) with a lawyer to Signal.

Official site: <https://signal.org>

## Connects to (4)

- [Encryption](https://ecosystem.samcarlton.com/encryption): Scrambling data with a key so only someone with the right key can read it.
- [Data privacy](https://ecosystem.samcarlton.com/data-privacy): How a company collects, uses, stores and shares information about people.
- [WhatsApp](https://ecosystem.samcarlton.com/whatsapp): A messaging app for text, voice notes, calls and group chats, used widely around the world.
- [Open source](https://ecosystem.samcarlton.com/open-source): Software whose code is published for anyone to read, use and build on, under a license that sets the rules for doing so.

Map view: https://ecosystem.samcarlton.com/signal