Not only are the messages encrypted, but the Signal server never has access to any group metadata such as the membership list, group title, or group icon.• Fast - The Signal protocol is designed to operate in the most constrained environment possible.
Using Signal, messages are instantly delivered to friends.• Speak Freely - Make crystal-clear phone calls to people who live across town, or across the ocean, with no long-distance charges.
Signal is the only private messenger that uses open source peer-reviewed cryptographic protocols to keep your messages safe.• Be Yourself - Signal uses your existing phone number and address book.There are no separate logins, usernames, passwords, or PINs to manage or lose.• Group Chat - Signal allows you to create encrypted groups so you can have private conversations with all your friends at once.It's the only way some of my friends even bother to communicate anymore, it seems. For example, the present version of the i Phone version of Signal doesn't allow users to block others.That's an important feature to me in an app like this. Signal offers verified, secure texts and calls via end-to-end encryption.
Still, it's not a total deal breaker, so I'll keep using it for now. If you are at all concerned with your privacy, this is extremely important. There are a few minor bugs and I agree that I would like a way to use Signal without a required registered phone number. Hey, if it's good enough for Ed Snowden, it's good enough for me !I'm not a professional programmer, so I can't vouch for how secure it really is.