They did this recently: http://www.slate.com/blogs/future_tense/2014/11/18/whatsapp_adds_textsecure_end_to_end_encryption_by_partnering_with_open_whisper.html

They did this recently: http://www.slate.com/blogs/future_tense/2014/11/18/whatsapp_adds_textsecure_end_to_end_encryption_by_partnering_with_open_whisper.html http://www.slate.com/blogs/future_tense/2014/11/18/whatsapp_...