tech

> When it comes to security and privacy, Signal is often considered the gold standard in encrypted messaging apps. But to what extent is this reputation justified? In this article, we investigate how safe the Signal app is, including the Signal Protocol — the underlying cryptographic protocol that secures Signal and other similar apps, such as WhatsApp, Facebook Messenger, Google Messages for RCS end-to-end encryption, and Skype for its Private Conversations feature (now discontinued).
>
> - What is the Signal app?
> - Who owns Signal?
> - How does Signal make money?
> - Is Signal secure?
> - Security concerns with the Signal Protocol
> - Is Signal private?
> - Signal privacy concerns
> - Signal vs. SMS
> - Signal vs. WhatsApp
> - Signal vs. Facebook Messenger
> - Signal vs. email
> - Signal vs. Threema
> - The US government Signalgate “leak”
> - Final thoughts on Signal’s security
>
> **[...read more at proton.me](https://proton.me/blog/is-signal-safe)**

~security