The Guardian reported: “The security backdoor was discovered by Tobias Boelter, a cryptography and security researcher at the University of California, Berkeley. What WhatsApp has done is to allow the message to linger around as they regenerate another key,” Mr Kachwanya told the Nation yesterday. 'IMPLEMENTATION METHOD'“The solution is either WhatsApp changes the security implementation method or WhatsApp users must stop sending any confidential messages over that channel, because it’s a public communication channel. “The WhatsApp client [servers] have been carefully designed so that they will not re-encrypt messages that have already been delivered. “The fact that WhatsApp handles key changes is not a ‘backdoor’, it is how cryptography works,” read part of their statement.

Source: Daily Nation January 14, 2017 23:21 UTC