The importance of information security in general, of managed information at the level of a database has increased with the expansion of the Internet. On the other hand, it has acquired new facets with the increase of the accessibility of the users to as many resources as possible. Large volume of private data in use and the limitation of unauthorized actions to information have brought new aspects to the issue of ensuring their protection. The scope of this field is wide and allows the operation in several directions: identification, description, creation, implementation and testing of mechanisms aimed at improving the working environment in which database management systems operates. Due to the importance of the information managed by a DBMS[1], it is necessary to define a framework safe and easy to use. The database fulfills not only the role of storage, but also of data provider to users. Thus, the information must be protected throughout the interaction process: generation, storage, processing, modification, deletion, etc. Therefore, the security of databases must not only be reduced to the protection of certain data considered sensitive, but also to the creation of a secure, authorized and controlled global environment through which information becomes available to users.
[1] DBMS – DataBase Management System
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