"Signal Introduces Usernames for Private Phone Number Protection"
Signal introduces unique usernames to replace phone numbers, allowing users to share their username instead of their number. The usernames must end with two or more numbers as an anti-spoofing measure and can be changed or deleted at will. This update enhances privacy by making phone numbers invisible to others by default and requiring an exact username to find a user. However, users should be cautious of potential abuse by spammers and scammers.