As the scale of DDoS attacks continues to expand and techniques become more sophisticated, enterprises face unprecedented security challenges. Traditional defense mechanisms are no longer sufficient to counter modern DDoS threats. Ensuring business continuity and maintaining high availability in cloud environments have become key issues in enterprise security strategies. This session will delve into the latest trends in DDoS attacks and introduce best practices for Microsoft's cloud defense mechanisms. It aims to help enterprises optimize their cloud architecture, enhance business resilience, and build a comprehensive DDoS defense system, from detection to mitigation, ensuring enterprise security.