Revoking access to company systems and hardware ensures that former employees are unable to access sensitive information or resources after their departure, which is a standard security practice during the offboarding process. This helps prevent potential data breaches or unauthorized access to the company systems. Collecting company property is a part of offboarding, but it's not specifically a security aspect. Extending benefits applies to the welfare of the employee, not to organizational security. Exit interviews contribute to company feedback and human resources processes but are not primarily concerned with security practices.