WhatsApp Collects and Transmits Data, Warns Paper

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Users of WhatsApp need be aware that the popular messaging service collects phone numbers, call duration and other information, according to new research.

A network forensic examination by computer scientists at the University of New Haven found that WhatsApp uses the FunXMPP protocol, a binary-efficient encoded Extensible Messaging and Presence Protocol (XMPP), for message exchange…MORE:   theregister