DbDefence

DBDefence is the program designed exclusively for SQL Server to protect the database from unauthorized access.

DBDefence transparently encrypts the database without modification of your application. DBDefence prevents access to the database tables completely until certain SQL statement with the password. Even DBA can't access tables or execute procedures. Each application which wants to access the database must execute special statement with the correct password once for the session to access the database. After application supplies the correct password everything is accessible as usually.