Efficient and effective security model for database specially designed to avoid internal threats

Since the information or data stored in databases are usually considered as vulnerable and also important corporate resource, security is of uttermost importance in any database management system, particularly those database that has sensitive information. There are lots of security models for commercial systems but information system security is often ignored. Information security remains a key issue in the IT industry, as shown in several surveys. Security accidents continue to increase in frequency and sophistication. As the client or user using the database wants more access to the data in this world connected by internet, the chances for security breaches are increasing. Therefore in this paper a security model specially designed for avoiding internal threats is given which already exist. But because of the performance issues of that model an amended security model is proposed. This amended security model has high performance i.e. without affecting to the security of overall model, response time of the system is reduced. The performances of both the models are compared and which model is best is decided based on the performances.