IndividualFreedom said:
How does Signal work?
I am envisioning a group text from the iphone on an encrypted app. that connects to your contacts. A group leader picks who they want in the group. You can name the group. Away you go. Perhaps a password to login.
Someone who has used Signal before should explain this.
If what I wrote above is correct:
1. Who started the message, because that person had Goldberg's contact in their phone.
1A. Why is Goldberg a contact?
2. If a mistake, who did you mean to add over Goldberg?
3. Like any other group message, if the other members did not have Goldberg as a contact, only a phone number would appear.
3A. Why did nobody question who that number belonged to?
Signal can handle both encrypted calls and chats. You can use it on a computer as well as your cell phone, but you have to originally set it up with your cell phone.
I'm in a group chat on Signal. If I remember correctly, when I received the invitation, I just had to confirm the invitation. I then received a notice that I had been added to the group. I don't know if others on the group could see it.
By the way, with Signal, you don't have to know someone's cell phone number. If you want to give out contact details without giving out your cell phone number, there is a username made up of a text string, a dot, and a number. Someone can use that to contact me on Signal, either by chat or by encrypted call, without having my cell phone number.
Or you can use the QR code.