IT safety is very important in the today’s world. Nowadays we use computer not only for professional matters, however also for entertainment, a large number of us use it more than 12 hours a day. Computers, Smartfones, Smartwaches all of these brilliant thingsw are related with the Global Web and highly sophisticated , besides they are full of data. Privacy in the Global Web is very significant, but it is also very valuable in the other way. The information about our needs is very important for big corporations who like to know what we have to or like to buy.