The most effective way to ensure a vendor is compliant with the agreed-upon cloud service is to examine the cloud provider’s certifications and ensure the scope is appropriate. Certifications are independent attestations of the cloud provider’s compliance with various standards, regulations, and best practices related to cloud security, privacy, and governance1. They provide assurance to customers that the cloud provider has implemented adequate controls and processes to meet their contractual obligations and expectations2. However, not all certifications are equally relevant or comprehensive, so customers need to verify that the certifications cover the specific cloud service, region, and data type that they are using3. Customers should also review the certification reports or audit evidence to understand the scope, methodology, and results of the assessment4.
The other options are not as effective as examining the cloud provider’s certifications. Documenting the requirements and responsibilities within the customer contract is an important step to establish the terms and conditions of the cloud service agreement, but it does not guarantee that the vendor will comply with them5. Customers need to monitor and verify the vendor’s performance and compliance on an ongoing basis. Interviewing the cloud security team may provide some insights into the vendor’s compliance practices, but it may not be sufficient or reliable without independent verification or documentation. Pen testing the cloud service provider may reveal some vulnerabilities or weaknesses in the vendor’s security posture, but it may not cover all aspects of compliance or be authorized by the vendor. Pen testing should be done with caution and consent, as it may cause disruption or damage to the cloud service or violate the terms of service.
References:
Cloud Compliance: What You Need To Know - Linford & Company LLP1, section on Cloud Compliance
Cloud Services Due Diligence Checklist | Trust Center2, section on Why Microsoft created the Cloud Services Due Diligence Checklist
The top cloud providers for government | ZDNET3, section on What is FedRAMP?
Cloud Computing Security Considerations | Cyber.gov.au4, section on Certification
Cloud Audits and Compliance: What You Need To Know - Linford & Company LLP5, section on Cloud Compliance Management
Cloud Services Due Diligence Checklist | Trust Center, section on How to use the checklist
Cloud Computing Security Considerations | Cyber.gov.au, section on Security governance
The top cloud providers for government | ZDNET, section on Penetration testing
Penetration Testing in AWS - Amazon Web Services (AWS), section on Introduction
