Access to the data is pretty easy thanks to technological opportunities that have been developing today. This situation brings along data security problems. Many studies are carried out for the classification and storage of data, restricting the users who can access the data, determinations of authorities, and prevention of the data from falling into unwanted hands. Data leakage is prevented thanks to Data loss prevention (DLP). With DLP software, critical data of companies are stored securely. Thanks to the data loss prevention system, leakage of information and documents outside the organization is prevented.