What is AWS Shield?

AWS Shield is a managed Distributed Denial of Service (DDoS) protection service that safeguards applications running on AWS. Shield Standard provides automatic protection against most common network and transport layer DDoS attacks at no additional charge. Shield Advanced offers enhanced protection with additional detection and mitigation against larger and more sophisticated attacks. It includes 24/7 access to AWS DDoS Response Team (DRT), real-time attack notifications, and DDoS cost protection. Shield integrates with CloudFront, Route 53, ELB, and Elastic IP resources.