IT protection is significant in the today’s world. Nowadays we have computer not only for work, but also for entertainment, a large number of us use it more than 12 hours a day. Computers, mobile phones, Smartwaches all of these great inventions are related with the Internet and highly complicated , besides they have a large number of data. Privacy in the Internet is very important, nevertheless it is as well very valuable in the other meaning. The knowledge about our needs is very important for large organisations who like to know what we want to or like to buy.