Which of the following is a component of Dynatrace's Security best practices?

Cross-site scripting prevention is a fundamental component of security best practices within Dynatrace. This approach focuses on safeguarding applications by ensuring that input from users is properly sanitized and validated, thus mitigating the risk of attackers injecting malicious scripts that can compromise the integrity of web applications. By implementing robust measures against cross-site scripting, organizations can protect sensitive information and maintain the trust of their users.

In contrast, while other options like firewall configuration, data storage encryption, and access control lists are critical aspects of a comprehensive security strategy, they do not specifically align with the unique security features and best practices emphasized within Dynatrace's framework. Each of these components contributes to an overall security posture, yet cross-site scripting prevention directly addresses a specific threat relevant to the web applications that Dynatrace monitors and manages. This highlights the focused nature of security practices within the context of application monitoring and performance management offered by Dynatrace.