This section deals with prevention mechanisms in the context of both:

• organized crime, whose main objectives focus on acquiring money quickly, easily and efficiently by illegal activities, where identity are hidden and the work is performed anonymously;
• terrorism and cyber terrorism, which is not mainly about gaining money, but rather to create instability and fear within societies, to get media attention, attack citizens and infrastructure and so on (Jalil 2013).

In the final part of the section, eight main case studies have been selected related to cyber-attacks towards government and public institutions, auction-trade fraud, advance fee fraud and identity theft, dark net and dark market, terrorist communication, propaganda from terrorist networks and industry and infrastructure sabotage. For each of them, specific threats scenarios are identified and possible prevention approaches mainly centred on digital available tools are described.