Back

@signalapp One concern though:

> This means that when you participate in group chats, message people 1-1, and make Signal calls, your phone number won’t show up unless the person has it saved

Seems that group chats where participants want to stay anonymous could be vulnerable to the following:
A malicious participant knowing a number associated with an identity could add the said number to their contact to detect if the person is in the group chat.
Or did I misunderstand something?