With the appearance of personal computers the situation began to change rapidly. The computing complexes began to enter into the business and scientific fields. Such decentralization has created isolated data groups that have complicated the information exchange. Due to the development of networks such “groups” were united. And the problem arises because the distribution and separation of information is the antipode of security and safety of confidential information.
The situation gets worse when the expansion and the opportunities of Internet have made this structure active and integral instrument of the modern business. It is not necessary to provide the computer security in the ideal world, where nobody tries to hack the system and get the access to the confidential commercial or private information. There are no unfair employees or competitors trying to steal commercial secrets of your firm or ones who create destroyable viruses. But, real world is not ideal…
The problem of security is endless. Science the development of electronic document flow and electronic business companies began to connect their private networks with the Internet and the problem of providing of data security became the common concept of the informational security.