If your choice of encrypted messaging app is a toss-up between Signal, Telegram and WhatsApp, do not waste your time with anything but Signal. This isn't about which one has cuter features, more bells and whistles or is the most convenient to use: It's purely about privacy . And if privacy's what you're after, nothing beats Signal.

You probably already know what happened. In a tweet heard 'round the world last January, tech mogul Elon Musk continued his feud with Facebook by advocating people drop its WhatsApp messenger and use Signal instead. Twitter's then-CEO Jack Dorsey retweeted Musk's call. Around the same time, right-wing social network Parler went dark following the Capitol attacks, while political boycotters fled Facebook and Twitter. It was the perfect storm -- the number of new users flocking to Signal and Telegram surged by tens of millions.