Which service is designed to increase network protection against unauthorized activities in AWS?

Amazon GuardDuty is designed specifically to enhance network protection against unauthorized activities within AWS environments. It is a threat detection service that continuously monitors for malicious or unauthorized behavior by analyzing various data sources such as AWS CloudTrail event logs, VPC Flow Logs, and DNS logs. By leveraging machine learning and threat intelligence, GuardDuty identifies potential threats such as unusual API calls, potentially unauthorized deployments, and other anomalous network activity that could indicate security risks.

This proactive approach allows organizations to respond promptly to potential threats and take necessary actions to protect their resources. Additionally, GuardDuty can automate the detection process, enabling quicker responses to incidents and allowing security teams to focus on higher-priority tasks. By providing detailed findings about potential security threats, GuardDuty plays a central role in a comprehensive security strategy within AWS.

The other options mentioned, while useful in their own capacities, do not specifically focus on threat detection related to network activity. AWS Config is primarily for resource inventory and compliance, AWS Trusted Advisor provides best practice recommendations, and Amazon GiveAway is not an AWS service relevant to security.