Supply chain cybersecurity has been a highly concerning issue in recent years. Whether it is the procurement of upstream vendors' components or the introduction of human resources systems and marketing services, they can all be potential vulnerabilities for enterprise information security. Therefore, this seminar will analyze the roles, rights and obligations between owners and suppliers from the perspective of cybersecurity. Through actual cases, it will explore the respective rights and obligations of owners and suppliers from supplier selection, acceptance to long-term maintenance cooperation. This will help listeners to better understand how to prevent cybersecurity threats from the supply chain.