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What is Signal?

If you’ve ever sat in a coffee shop or browsed online and wondered about how private your information really is, then Signal is for you. Like WhatsApp and Facebook, it is a private messaging app. But unlike those giants, this encryption app puts an emphasis on privacy. It’s a favorite with journalists, politicians, and everyone else who wants to make sure that their phone calls remain secure.

The introduction of video-calling is exactly what avid users of the Signal app have been requesting. Now there’s a way to send private video calls without anyone else watching. This app is available for free. You can download the app or use it as a Chrome extension. Android users are able to use the app to send MMS and SMS messages (even for those without the app), but it will lack the same sort of security that Signal users messaging each other would possess.

There’s no username information. Instead, like WhatsApp, Signal uses your cell phone number as a way for your contacts to find you. There are other features that will be familiar to any social media user. You’ll find emojis, voice, video calls, and even group chats. Whatever is sent or received from a Signal user to a Signal user is encrypted. What’s more, the app doesn’t store your data, so you don’t have to worry about it falling into the wrong hands. With its open source code (allowing everyone to take a peek at what’s under the hood), security groups everywhere are impressed.