A programmer obtained the payroll master file and increased his salary

What will be an ideal response?

• Implement physical access controls such as a file library function to prevent programmers from having unsupervised access to production databases

• Implement authentication and authorization controls such as user ID's, passwords, and access control matrix to limit access to all master files to authorized personnel

• Have supervisors review reports of all changes to payroll master data to detect this type of fraud

• Have the the personnel department maintain a batch total of all salaries and check it against the corresponding total generated during each payroll run as a backup control,