In contrast, Facebook could reveal your full name, everything you’ve said on Facebook Messenger, a list of geographical locations you’ve accessed your account from-and so on.Įverything in your Signal app-messages, pictures, files, and so on-is stored locally on your phone. Signal actually created its own encryption protocol for this. The company that operates Signal could not see these messages even if it wanted to. The encryption happens between the individual devices using Signal. Only the people involved in the communication can see them. How (and Why) Signal Is So Private and Secure Eliseu Geisler/Īll communications on Signal-including one-to-one messages, group messages, file transfers, photos, voice calls, and video calls-are end-to-end encrypted. The source code for the project’s client apps and server software is available on GitHub. Only the people in the conversation can see them. Your conversations in Signal are end-to-end encrypted, which means that not even the owners of Signal can monitor them. While Signal has a very familiar interface, it’s very different under the hood. Signal doesn’t try to gather a bunch of data on you or show you advertisements. Unlike Facebook, Signal’s owners aren’t even trying to make money. Instead, Signal is developed by a non-profit foundation and is funded by donations.
Signal isn’t owned by a big tech company.
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