“…Today's trendy instant messaging service WhatsApp, which is also based on XMPP technology, although customized to fit their needs, now has over 350 million monthly users. XMPP is also utilized as a basis for many other commercial products and solutions, and is used, e.g., in gaming, geolocation and cloud computing [37], but also in sensing of campus areas [42], smart cities [43] and home environments [44], [12], [45], public transport [46], disaster management [47], [48], to retrieve Internet Abuse handling related information, in smart grids [49] and cyber security exercises, and in medical instruments and systems to monitor patients [6], [50], [51]. The potential of the XMPP technology is huge and, as we can see, some of the biggest companies are utilizing that potential on their top end products and services.…”