点按 新增标签，建立新的标签名称与新增成员，或于新增成员中，将朋友加入已设定的标签内。 [105] The Specter of this attack is often mitigated by enabling Signal's Registration Lock aspect, a kind of two-factor authentication that needs the user to enter a PIN to sign-up the phone number on a different gadget.[146] A lot of the organizers have moved to encrypted messaging applications https://www.lt-signal.com/