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。
[a hundred and five] The threat of this assault is often mitigated by enabling Signal's Registration Lock feature, a method of two-element authentication that needs the person to enter a PIN to register the telephone number on a different device.[146]
Some of the organizers have moved to encrypted messaging applications like Telegram and Sign, which can't be as simply monitored as social websites platforms. ^
TextSecure permitted the consumer to set a passphrase that encrypted the nearby message databases as well as person's encryption keys.[127] This did not encrypt the person's contact databases or information timestamps.[127] The Sign apps on Android and iOS is often locked Along with the cell phone's pin, passphrase, or biometric authentication.
Signal's app icon might be changed with a variety of colour themes for customization and to cover the application. The appliance name can also be customized.[132] Messages might have outcomes like spoilers and italics, and end users can increase each other by means of QR code.[133]
On 9 August 2022, Ismail Sabri Yaakob, the Primary Minister of Malaysia, claimed that his Signal account was "hacked" and infiltrated by a third party, sending out messages and impersonating the politician. No aspects had been disclosed concerning the method accustomed to get access to the account.[215]
On 4 October 2016, the American Civil Liberties Union (ACLU) and Open up Whisper Systems posted a number of files revealing that OWS experienced gained a subpoena demanding them to offer information and facts connected to two cellphone figures for a federal grand jury investigation in the first fifty percent of 2016.[eighty two][83][84] Only among the two cellular phone quantities was registered on Sign, and since of how the provider is built, OWS was only in a position to offer "some time the person's account had been designed and the final time it experienced connected to the support".
Signal involves which the person supply a telephone selection for verification,[141] eradicating the need for user names or passwords and facilitating Call discovery (see underneath).[142] The amount does not have being the same as on the product's SIM card; it can be a VoIP number[141] or simply a landline assuming that the user can get the verification code and have a different unit to set up the software package.
Until finally 2023, Signal电脑版下载 Android people could opt into producing Sign the default SMS/MMS application, enabling them to mail and receive unencrypted SMS messages As well as the conventional finish-to-conclude encrypted Sign messages.
This necessary link to your phone number (a function Signal shares with WhatsApp, KakaoTalk, and Other folks) has actually been criticized as a "significant concern" for privacy-aware end users that are not at ease with supplying out their non-public selection.
Among the things that I was briefed on extremely early, senator, was through the CIA information management folks about the use of Signal as a permissible work use," Ratcliffe said. ^
端到端加密：所有消息、语音、文件传输都经过加密，确保第三方无法读取。
The declare that Sign is accustomed to fund terrorist or prison routines is the justification for Turkey to criminalize the app for the final population, which Abdullah Bozkurt promises is a way the "govt abuses its counterterrorism regulations to punish critics, opponents and dissidents."[243][244]
Sign uses cellular phone numbers to sign-up and regulate user accounts, while configurable usernames were additional in March 2024 to permit customers to hide their cellular phone numbers from other end users.