Some time ago a company connected with the world"s most famous community website was accused of breaking the law of personal data protection. Different sites were filled up with personal data of people and with different private facts that they thought were safe on the company servers. The company itself could not explain how this could have happened and claimed that they have one of the most advanced security systems in the world. While the workers from the community websites were looking for the cause of leak new private personal data files were missing from servers and data banks. There was no other explanation but that the company was a victim of a hacker. After few weeks of intensive searching for the signals that the hacker could have left in the internet, the company finally stated that it was not a hacker attack who caused the leaks of data. They started to search the factor in their server rooms and they checked every single rack shelf one by one. And surprisingly they found what they were looking for. A small cube in one of the rack shelf was a device that was steeling the data and sending it into other servers. But even today they do not now who and why installed that device there. Maybe it was some unsatisfied employee or maybe other companies wanted to destroy their biggest opponent.