Mark Zuckerberg announces rollout of default end-to-end encryption on Facebook Messenger Image Credit: Gizmodo Mark Zuckerberg announces the rollout of default end-to-end encryption on Facebook Messenger. Users may have a fully encrypted chatting service. Users may have to wait a few months before every group chat is secure. 0 0 Share 0 Tweet 0 Share 0 Total 0 Shares