Its core technology has also been implemented by Meta's and Google's messaging platforms, albeit optionally. The underlying technology called the Signal Protocol is open-source and has been evaluated by researchers (Opens in a new window). I am not a cryptographer, but other, smarter people than I have examined Signal. It's Surprisingly Easy to Be More Secure Online In fact, its main concern is ensuring that you're speaking securely with only the people you intend, not hiding your identity. Bear in mind that Signal is built for privacy, not anonymity. While other services like Facebook Messenger and Telegram include an E2EE option, Signal is one of the very few to make it mandatory. Not even the creators of Signal cannot peek inside your conversations. That means only you and your recipient(s) on Signal can read your messages. There are two essential differences between Signal and just about every other chat application out there.įirst, it's end-to-end encrypted (E2EE) by default. It’s an Editors' Choice winner for secure messaging. Among the services we've reviewed, it strikes the best balance between security, accessibility, and fun. This app has improved enormously over the years, but it hasn't sacrificed its principles or the security of its users. This free, cross-platform app protects your messages, calls, and video chats from prying eyes and data-hungry corporations. Instead of submitting to the surveillance capitalism panopticon, start communicating securely with Signal. This might sound paranoid, but it's unfortunately also true: From cops to advertisers, everyone is out to get your data.

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