The Denis Widgets Company is putting new controls in place for its accounting department. Management is concerned that a rogue accountant may be able to create a new false vendor and then issue checks to that vendor as payment for services that were never rendered. What security control can best help prevent this situation?

When following the segregation of duties principle, organizations divide critical tasks into discrete components and ensure that no one individual has the ability to perform both actions. This prevents a single rogue individual from performing that task in an unauthorized manner. Mandatory vacations and job rotations are designed to detect fraud, not prevent it. Defense in depth is not a relevant principle here because the answer is seeking an initial control. Management may choose to add additional controls at a later date, but the primary objective here would be to implement segregation of duties.