Welcome to TNW Basics, a collection of tips, guides, and advice on how to easily get the most out of your gadgets, apps, and other stuff. Signal is considered one of the most privacy-focused chat apps out there with end-to-end encryption protection. A lot of journalists and activists use it to talk to people without fear of snooping. However, you have to currently give your phone number to someone to talk to them on the app. For extra precautions, you might want a secondary number for Signal. Until now, if you wanted to change your number on Signal, you had to…
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