Software composition analysis (SCA) is the most effective method to mitigate third-party risks in a software supply chain. SCA tools analyze the open-source and third-party components used in software development to identify known vulnerabilities, outdated dependencies, or licensing issues. By integrating SCA into the development environment, the company can proactively address risks related to external libraries or codebases that may introduce vulnerabilities into the software supply chain. CASP+ emphasizes the importance of securing the supply chain, particularly by identifying and addressing risks introduced by third-party software components. Reference: CASP+ CAS-004 Exam Objectives: Domain 3.0 - Enterprise Security Architecture (Third-Party Risk Management) CompTIA CASP+ Study Guide: Securing Software Supply Chains with SCA