Understanding and Responding to Distributed Denial-Of-Service Attack

The Cybersecurity and Infrastructure Security Agency (CISA), the Federal Bureau of Investigation (FBI), and the Multi-State Information Sharing and Analysis Center (MS-ISAC) are releasing this joint distributed denial-of-service (DDoS) attack guidance for federal, state, local, tribal, and territorial government entities to serve as a comprehensive resource to address the specific needs and challenges faced by government agencies in defending against DDoS attacks.