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Off-the-record Messaging (OTR) is a cryptographic protocol that provides encryption for instant messaging conversations. OTR uses a combination of AES symmetric-key algorithm with 128 bits key length, the Diffie–Hellman key exchange with 1536 bits group size, and the SHA-1 hash function.
TextSecure required that the user had a phone number for verification. [35] The number did not have to be the same as on the device's SIM card; it could also be a VoIP number [35] or a landline as long as the user could receive the verification code and have a separate device to set-up the software. A number could only be registered to one ...
No No Yes Viber: Phone number No No No No WeChat: Phone number or QQ number No No No No No WhatsApp: Phone number No Yes No No No Wire: Email or Phone number Yes Yes [121] No Yes [122] Yes Client Registration requirement Independent of mobile phone End-to-end encryption Peer-to-peer text chat Open source servers Federated servers
The phone number we contact you with may be different each time. Enable 2-step for phone. 1. Sign in to your Account Security page. 2. Next to "2-Step Verification," click Turn on. 3. Select Phone number for your 2-step verification method. 4. Follow the on-screen prompts to complete the process. Sign in with 2-step for phone. 1.
No one should ever ask you for a six-digit verification code — not a stranger on social media, not tech support, not even your bank. If someone does, end the conversation and block their number ...
A classic example of instant messaging on a desktop computer: the left window of this software showing a list of contacts ("buddy list") and the right window an active IM conversation An example of instant messaging on mobile, featuring the exchange of pictures and audio on top of text. Instant messaging (IM) technology is a type of synchronous ...
US officials have warned people to not send text messages amid a massive and ongoing cyber attack against telecom companies.. Smartphone users are instead urged to use encrypted messaging apps ...
The original code for Android SMS messaging was released in 2009 integrated into the Operating System. [7] It was released as a standalone application independent of Android with the release of Android 5.0 Lollipop in 2014, replacing Google Hangouts as the default SMS app on Google's Nexus line of phones.