Management is in a unique position to perpetrate fraud because of management’s ability to manipulate accounting records and prepare fraudulent financial statements by overriding controls that otherwise appear to be operating effectively. Although the level of risk of management override of controls varies from entity to entity, the risk is nevertheless present in all entities. Due to the unpredictable way in which such override could occur, management override of controls is an RMM due to fraud and thus a significant RMM.
(BDO Audit Manual Par 16.37)