following model called pejorative wheel. It presents the schematic hazards encountered on the Internet, with whom he met, violently, or are watching:
model shows that the risks in the network overlap in degrees: greater, lesser , or minimal, and interact with each other in a virtual body.
example foment disorder troll for anti-social behavior, which may degenerate into a term deviations, such as predators are looking for sites with child pornography, hazardous sites collect data to send unsolicited commercial messages, etc.

Proposal I always try to emphasize that in the virtual world, the notion of security is also virtual.