Distributed denial of service (DDoS) attack mitigation has traditionally been a challenge for those hosting on fixed infrastructure. In the cloud, users can build applications on elastic infrastructure that is capable of mitigating and absorbing DDoS attacks. What once required overprovisioning, additional infrastructure, or third-party services is now an inherent capability of many cloud-based applications. This session explains common DDoS attack vectors and how AWS customers with different use cases are addressing these challenges. As part of the session, we show you how to build applications that are resilient to DDoS and demonstrate how they work in practice.