Life in a modern society is determined by strategic drivers, the most important of which are the Internet and Information and Communication Technology (ICT). Their use is one that contributes to global development and enables it to be balanced globally. The sustainability of this development is directly dependent on the degree of Internet misuse and the misuse of ICT. That is why we are discussing computer criminality through the example of Croatia. In the second part, we analyse the misuse of new ICT and the ways and possibilities of legitimate opposition to ICT abuses.