Humanity can’t live without information because it is the source of not only the elementary knowledge but also social status, profits, and certain advantages. Information is the modern instruments of the life you want to get.
Information’s role is very important nowadays no doubt. Information is available everywhere that was favourable for the development of new psychological addiction that is information addiction.
Turn around and you’ll find yourself covered with information that doesn’t allow breathing. But no, breathing is information and nothing more.
Information is the unique form of manipulation as with its help it is possible to make people believe in everything you want and to make people do everything you want.
It is always necessary to tell useful and true information from the waste with which libraries and Mass Media are filled not to mention internet.
Information plays an important role in the life of people. With the raise of importance and significance of information, its protection becomes obvious. That is why the problem of information security is one of the most developed spheres of human civilization development improving its methods. Information may be very important especially if it belongs to the security offices, banks, transport data and time-table, etc.
On other hand information costs a lot of money. It means that the news leak and the lost of information may bring the financial lose. On the other hand information is management. Unauthorized interference into the management can lead to catastrophic consequences in the object of management that mean manufacturing, transport, military actions, etc. For example, the modern military science says that the full loose of the communication facilities leads to the complete military incapacity of the army.
That is why information security must take measures to limit the access to the information for certain categories of people and for the true information identification and keeping.
Another not less important task of information security may seem not rather connected with the first one, nevertheless it is not so. In the first case the owner of information tries to prevent the interference into it and in the second case he/she wants to prevent information changes while the access for reading is allowed. And both tasks are solved with the help of the same methods.