Threema offers a "Validation Logging" feature that makes it possible to confirm that messages are end-to-end encrypted using the Na Cl Networking and Cryptography library.
Researchers from cnlab confirmed that Threema allows secure end-to-end encryption, and claimed that they were unable to identify any weaknesses in the implementation.
Cnlab researchers also confirmed that Threema provides anonymity to its users and handles contacts and other user data as advertised.
In February 2014, German consumer organisation Stiftung Warentest evaluated several data-protection aspects of Threema, Whats App, Telegram, Black Berry Messenger and Line.
Pidgin is a chat program which lets you log in to accounts on multiple chat networks simultaneously.
This means that you can be chatting with friends on MSN, talking to a friend on Google Talk, and sitting in a Yahoo chat room all at the same time.
implementing forward secrecy), having its security design well-documented and having completed an independent security audit.
It is missing a point because its source code is not open to independent review (i.e. On 9 March 2017 Threema was included into the Register of organizers of information dissemination in the Internet operated by the Federal Service for Supervision of Communications, Information Technology and Mass Media of the Russian Federation.