Which AWS service protects web applications from common exploits such as SQL injection and cross-site scripting?

AWS WAF (Web Application Firewall) protects web applications from common web exploits that could affect application availability, compromise security, or consume excessive resources. It filters malicious traffic based on rules you define, addressing threats like SQL injection and cross-site scripting. Amazon Inspector is an automated security assessment service that helps improve the security and compliance of applications deployed on AWS. Amazon GuardDuty is a threat detection service that continuously monitors for malicious activity and unauthorized behavior. Amazon CloudWatch is a monitoring and observability service that provides data and actionable insights to monitor applications, respond to system-wide performance changes, and optimize resource utilization.