Read the following two articles:

http://databases.about.com/od/security/a/databaseroles.htm

http://databases.about.com/od/security/a/sqlinjection.htm

Consider the following positions in an organization:

Top management
Senior IT Management
Database Administrator
Database Designer
Database User

How familiar do people in these positions need to be with regard to database securitygenerally and to particular issues like SQL injection? In your job, how are you or have you been affected by database security? (Be sure to specify what sort of position/relationship you have to a database.)