THE MESSAGING APP Signal is described by security professionals as utilizing the gold standard of cryptography. Unlike many competitors, its default is end-to-end encryption — and on top of that, the app minimizes the amount of information it stores about users. This makes it a powerful communication tool for those seeking a private and secure means of chatting, whether it’s journalists and their sources, activists and human rights defenders, or just ordinary people who want to evade the rampant data-mining of Big Tech platforms.

Signal continues to introduce privacy-enhancing features such as usernames that can be used in lieu of phone numbers to chat with others — preventing others from finding you by searching for your phone number. But the app still requires users to provide a working phone number to be able to sign up in the first place.

For privacy-conscious individuals, this can be a problem.

...read more at theintercept.com