Edward Snowden has only had to publish a few tweets to turn Signal Private Messenger into the new instant messaging application used by the most paranoid users in terms of security.
I use Signal everyday. Take note of that, FBI!
It's a tool to be able to chat individually or in groups, with the particularity that our communications are encrypted from end to end, so that nobody can spy our conversations, not even the NSA. Just like WhatsApp.
The functions of Signal aren't at all new, as it integrates the best features of RedPhone and TextSecure, two applications from the same company, Open Whisper Systems. And as couldn't be otherwise, it's also an open-source development.
- Individual and group chats.
- End-to-end encrypted communications.
- Send messages, photos, audio files and videos in a safe manner.
- Built-in phone calls.
- Doesn't require registries, your phone number is your identifier.