Messaging app Signal finally rolls out usernames in beta, allowing a user to conceal their phone number; Signal will still a require phone number to register (Andy Greenberg/Wired)

Andy Greenberg / Wired:

Messaging app Signal finally rolls out usernames in beta, allowing a user to conceal their phone number; Signal will still a require phone number to register  —  We tested the end-to-end encrypted messenger’s new feature aimed at addressing critics’ most persistent complaint.  Here’s how it works.