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Several popular messaging apps, including Messenger, Signal, Telegram and WhatsApp, use end-to-end encryption. Open Rights Group/Flickr

Are private conversations truly private? A cybersecurity expert explains how end-to-end encryption protects you

End-to-end encryption provides strong protection for keeping your communications private, but not every messaging app uses it, and even some of the ones that do don’t have it turned on by default.

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