TextSecure is Android platform a encrypted chat APP, this free APP is designed in order to guarantee communication privacy. This APP by Open WhisperSystems developed, the code completely*open source*support end-to-end SMS encryption. Looks very safe is not? Recently, however, from Germany's Ruhr University security researcher found TextSecure presence of“unknown key sharing attack”vulnerability.
In the Edward Snowden expose the NSA us NSA's monitoring project, the Facebook and the WhatsApp acquisition after the Signal began to show Tau Kok, to become those who focus on privacy, encryption chat needs individuals preferred.