This answer is the best approach because it aligns with the principles of third-party risk management, which include ensuring compliance with company policies, contractual obligations, and regulatory requirements. By asking the vendor to replace the subcontractor, the company is exercising its right to terminate or modify the relationship if the vendor fails to meet the agreed-upon standards or poses unacceptable risks. This also minimizes the potential impact of the vendor's non-compliance on the company's reputation, operations, and data security. The other options are less effective because they either ignore the issue, compromise the company's policy, or rely on the vendor's self-assessment without verification. References:
* Third Party Risk Management Framework, Module 3: Program Governance, Section 3.2: Policies and Procedures, p. 14
* Third Party Risk Management Framework, Module 4: Program Components, Section 4.3: Contracting, p. 24
* Third Party Risk Management Framework, Module 5: Program Implementation, Section 5.2: Ongoing Monitoring, p. 32
* Best-Practices Guidance for Third-Party Risk, Section: Defend Against Privileged User Risks, p. 2
* Five Best Practices to Manage and Control Third-Party Risk, Section: Best Practices for Controlling Third-Party Vendor Risks, p. 3