Job description: 1. Lead the security risk assessment of online business, develop and implement comprehensive security testing strategies; 2. Design and lead the emergency response process for security incidents, guide the team to analyze and track incidents, ensure rapid problem localization and efficient resolution; 3. Develop a solution strategy for system security issues and ensure the execution and quality of the solution; 4. Responsible for comprehensive security construction throughout the data lifecycle, leading security risk assessments and promoting comprehensive governance plans; 5. Provide safety training and awareness raising programs to ensure that teams and company employees understand and adhere to safety best practices; 6. Work closely with business, product, and technical teams to ensure that security requirements are implemented in all business processes and product development; 7. Monitor and evaluate emerging security technologies and trends, and guide the development and updating of the company's security strategy.