Any company regardless of the level of maturity possesses some valuable information which having got into the hands unscrupulous individuals can put an end not just to the financial future, but also to the whole business. Representatives of very small businesses may have quite considerable sums on their bank accounts, but they can seldom boast of their secure network of workstations. At best PC owners in the companies just install a demo version of an antivirus and a custom firewall. At worst they do not establish protection at all.