The authors study the concepts of identify guilty agent for data leakage system, factor and methods to identify the leakage of data. The data is used in important and so it should not be altered or leaked. In IT domain now a day's use of huge database is common. Simultaneously this data base is shared among many people. When they interchange the information, the weaknesses, leakage or modification rate increases. The solution for the above stated problem is to prevent data leakage. This paper describes a procedure to prevent and detect the data leakage persons.