This document is a solution brief that outlines the capabilities of Cymulate's Supply Chain Validation. It details the challenges organizations face regarding third-party service users and their lack of control over security posture management. The brief explains how cyber-attackers target supply chain vendors to gain unauthorized access to customer systems. It presents Cymulate's approach to evaluating third-party exposed assets' resilience to cyber-attacks through attack simulations and assessments with vendor authorization. The document emphasizes the importance of assessing suppliers' cybersecurity resilience to prevent undetected attacks. It describes the main features of the solution, including scanning and assessing the security of third-party vendors, evaluating the security posture, and the ability to conduct emulated attacks to determine the effectiveness of security controls. Additionally, it highlights the need for regular reassessment of suppliers to maintain cybersecurity resilience.