Moxie Marlinspike, the founder of Open Whisper Systems-the nonprofit behind Signal-declined to provide further details and said in an email that they will have more to say once the feature becomes publicly available.

It's not clear when the feature will be available on iOS devices. Video calling is an existing feature for many messaging apps like Facebook Messenger, WhatsApp and Google Duo, so it will be interesting to see if this feature brings Signal even closer to the mainstream. In addition, Signal's privacy policy also states that the app doesn't store any metadata about its users. Any messages you send will be scrambled and can only be 'unscrambled' by the intended recipient. Despite being built by a small team, the app has been praised by many security experts as one of the best for privacy protection. Unlike public posts, PMs are only viewable by the participants.

Signal saw a rise in downloads (opens in a new tab) after the 2016 election due to concerns about increased government surveillance. Jet Delivery specializes in providing nationwide same day courier delivery, messenger service on a local and national basis. In computing, a private message, personal message, or direct message (abbreviated as PM or DM) refers to a private communication sent or received by a user of a private communication channel on any given platform. Trump's cyber advisor didn't know about Signal Plasma Messenger keeps your conversations totally secure with end-to-end encryption.

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