This required link to the telephone range (a function Sign shares with WhatsApp, KakaoTalk, and others) has become criticized to be a "main challenge" for privacy-conscious end users who are not cozy with offering out their non-public quantity.
On 9 August 2022, Ismail Sabri Yaakob, the Primary Minister of Malaysia, described that his Sign account was "hacked" and infiltrated by a 3rd party, sending out messages and impersonating the politician. No details had been disclosed regarding the strategy utilized to get usage of the account.[215]
The complete source code of your Sign customers for Android, iOS and desktop is obtainable on GitHub beneath a absolutely free program license.[eleven][ten][twelve] This allows fascinated get-togethers to look at the code and assistance the builders validate that everything is behaving as envisioned. Additionally, it enables Sophisticated consumers to compile their own personal copies on the programs and Examine them With all the versions which are distributed by Sign Messenger.
Signal's conditions of support states which the product or service might not be utilized to violate the legislation.[237] According to a previous employee, Sign's leadership at enough time informed him they might say some thing "if and when people start out abusing Signal or executing things that we expect are horrible".
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。
Working with telephone figures as identifiers could also develop protection risks that crop up from the opportunity of an attacker taking on a cell phone number.[142] An identical vulnerability was used to assault at the least a single user in August 2022, nevertheless the attack was performed by using the supplier of Sign's SMS expert services, not any user's service provider.
On four October 2016, the American Civil Liberties Union (ACLU) and Open up Whisper Methods released a series of paperwork revealing that OWS experienced obtained a subpoena necessitating them to provide data associated with two cellphone quantities for a federal grand jury investigation in the primary 50 % of 2016.[82][83][84] Only on the list of two mobile phone quantities was registered on Sign, and because of how the services is built, OWS was only ready to supply "some time the consumer's account had been established and the final time it had linked to the support".
I finally acquired the prospect to read all of this additional carefully, and evidently all Cellebrite is undertaking is examining the texts off of the phone they're able to now access. To [sic] this has practically nothing to try and do with Sign whatsoever. So: in no way head.
In April 2021, Sign declared the addition of the copyright wallet feature that could allow customers to ship and get payments in MobileCoin.[216] This gained criticism from stability qualified Bruce Schneier, who experienced Earlier praised the application.
Until finally 2023, Android customers could opt into earning Sign the default SMS/MMS application, allowing them to mail and get unencrypted SMS messages As well as the standard conclude-to-conclude encrypted Sign messages.
创建安全群组，与朋友、家人和同事保持联系，同时享有所有隐私功能�?高级隐私功能
The team messaging system is made so the servers do not need usage of the membership listing, team title, or team icon.
[152][153] In July 2017, researchers from RUB uncovered all through A different Examination of group messengers a purely theoretic assault in opposition to the group protocol of Signal: A user who appreciates The key team ID of a bunch (due to acquiring been a group member Beforehand or stealing it from the member's unit) could become a member in the team. Because the team ID cannot be guessed and these member variations are displayed to the remaining customers, this assault is likely for being challenging to carry out without having staying detected.[154]
A year afterwards, from the runup to an eventually hardly attended sequel to Unite the proper in D.C., organizers appeared to remain from the System, opting rather to debate logistics in excess of Facebook Messenger and also the encrypted texting app Signal电脑版下载 Sign. ^