Which example of analyzing a vendor's response should trigger further investigation of their information security...

One of the key elements of a robust information security policy is the definition and implementation of requirements for third party governance and oversight. This means that the vendor should have clear and consistent processes and procedures for managing and monitoring the information security risks and controls of their subcontractors, suppliers, or service providers. Third party governance and oversight should include the following aspects12:

Establishing criteria and standards for selecting and evaluating third parties based on their information security capabilities and performance

Conducting regular and comprehensive assessments and audits of third parties’ information security policies, practices, and incidents

Ensuring contractual agreements and service level agreements (SLAs) with third parties include information security clauses and obligations

Maintaining visibility and communication with third parties regarding their information security status and issues

Implementing corrective actions and remediation plans for any identified information security gaps or weaknesses

Terminating or suspending the relationship with third parties that fail to meet the information security expectations or requirements If a vendor’s response does not specify any requirements for third party governance and oversight, it should trigger further investigation of their information security policies. This indicates that the vendor may not have a comprehensive and effective approach to managing the information security risks and impacts of their extended network of partners. This could expose the vendor and their clients to potential data breaches, cyberattacks, compliance violations, or reputational damages. Therefore, the vendor should be asked to provide more details and evidence of how they ensure the information security of their third parties, and how they address any information security incidents or issues involving their third parties. References:

1: Third-Party Information Security Risk Management Policy - SecurityStudio

2: Ensuring Data Protection for Third Parties: Best Practices | UpGuard Blog