An enterprise has a network of suppliers that it allows to remotely access an important database that contains critical supply chain data. What is the BEST control to ensure that the individual supplier representatives who have access to the system do not improperly access or modify information within this system?

ISACA CISM Exam syllabus in brief:

Information Security Governance    
A. Enterprise Governance
B. Information Security Strategy

Information Security Risk Management    
A. Information Security Risk Assessment
B. Information Security Risk Response

Information Security Program    
A. Information Security Program Development
B. Information Security Program Management

Incident Management    
A. Incident Management Readiness
B. Incident Management Operations