What controls could be implemented as a preventive measure against malicious insider threats, such as an unauthorized employee obtaining electronic customer sales information and later selling them to a competitor?
Role-based access controls are designed to restrict system and data access according to an employee’s authorized responsibilities. Applying the principle of least privilege prevents employees from accessing sensitive customer sales information unless such access is required for their assigned roles. This directly addresses the insider-threat scenario because the employee should be technically prevented from obtaining information outside authorized duties. Visitor management systems primarily address physical access by visitors rather than electronic access by employees. Network firewalls protect network boundaries and traffic but generally do not determine which authorized internal users may access specific business information. Information classification identifies the sensitivity and required handling of data, but classification alone does not prevent access. Therefore, role-based access control is the most direct preventive measure against unauthorized internal access to sensitive electronic information.
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