The computer security has become a topical theme, so that while a growing number of viruses and computer attacks, on the other there is now a great range of software and hardware systems dedicated to computer security, especially attacks via the Internet.

But the possibility of attacks on a computer network from the outside is not the only risk to our data. Many of the acts carried out by hackers and attackers take place inside the networks so when the firewall and other similar tools can not do anything to prevent it. According to a 2005 FBI Computer Crime, in fact, 44% of organizations have reported network intrusions from within their own companies.

The cause of the success of these actions, whether from outside or from the network, it is almost always a little protection and management of the network itself and of its PC.

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In fact it is not always easy to manage multiple workstations, perhaps different from each other and located in different floors or buildings. Sometimes even then it is not easy to identify all possible flaws and malfunctions in the network, the more so if the administrator is not particularly expert.

To meet the problems of network administrators, and in recent years have been proposed tools to automate the controls of the network, and possible signals and / or solve problems.