One of the most reliable is software and hardware protection of information, which is based on several principles. First of all, the user must have a sufficient level of access to work with the data, as well as all the necessary information for this. Such protection of information on the Internet may be used by the administration of the site, but it is also applicable to the protection of the company or other limited range of users. In addition, this system allows you to transfer any files only to specially marked media, or removes this option altogether. Each user is personally responsible for his actions, all his commands are registered by the computer and recorded in special log files. Although the user is working in the system, he has no access to the means of protection, as they are generally allocated to a separate independent module.