A control is a measure or action that is implemented to reduce the likelihood or impact of a risk event, or to enhance the benefits or opportunities of a risk event. A control owner is a person who is assigned the responsibility and authority for the design, implementation, operation, and maintenance of a control. A risk register is a tool that records and tracks the information about the identified risks, such as the risk description, category, owner, probability, impact, response strategy, status, and action plan. When an information security audit identified a risk resulting from the failure of an automated control, the person who is responsible for ensuring the risk register is updated accordingly is the control owner. The control owner should update the risk register with the information about the failed control, such as the cause, consequence, status, and action plan. The control owner should also monitor the performance and compliance of the control, and recommend any improvements or adjustments as needed.