You can read more about the Registration Lock feature here: https://support.signal.org/hc/en-us/articles/360007059792-Registration-Lock https://support.signal.

You can read more about the Registration Lock feature here: https://support.signal.org/hc/en-us/articles/360007059792-Registration-Lock https://support.signal.org/hc/en-us/articles/360007059792-Re...