In one of the earlier scenarios, Stacy discovers people who have unnecessary access to sensitive eligibility information. What important
detective internal control does she illustrate?
Segregation of duties
User Access Review
Conducting proper reconciliations
Asset inventory

Mastercard managers are motivated to increase (1) the number of individuals who have and use a mastercard credit card, (2) the number of banks and other clents who issue mastercards to customers and/or employees, and (3) the number of locations that accept mastercard payments. discuss how mastercard could use its data warehouse to it expand each of these customer bases.