What does Amazon GuardDuty monitor within your AWS environment?

Amazon GuardDuty is a threat detection service designed to continuously monitor your AWS accounts and workloads for malicious activities, unauthorized behavior, and potential security issues. It analyzes data from various sources such as AWS CloudTrail logs to track API calls, Amazon VPC Flow Logs for network traffic monitoring, and AWS DNS logs to identify potential threats. By leveraging machine learning, anomaly detection, and integrated threat intelligence, GuardDuty can identify suspicious activity such as unusual API calls, attempted data exfiltration, or reconnaissance attacks.

In this context, monitoring for malicious activity and unauthorized behavior is essential for maintaining the security and integrity of your AWS environment. The service provides actionable findings that enable you to respond quickly to potential threats and improve your overall security posture.

The other options focus on areas not covered by GuardDuty. Monitoring network performance and latency is typically handled by services like Amazon CloudWatch or AWS X-Ray. Billing and cost management activities are managed through AWS Cost Explorer and the AWS Billing Dashboard. Application deployment statuses fall under the domain of services like AWS CodeDeploy or AWS CodePipeline, which track the status and progress of code deployments. Thus, these options do not align with the primary function of Amazon GuardDuty, which is security monitoring.