"Automated and distributed attacks facilitated through botnets threaten the security and resiliency of the Internet ecosystem and the Nation's critical infrastructure. The size and scale of Distributed Denial of Service (DDoS) attacks facilitated through botnets has risen dramatically in the past few years. This development increases concern that such attacks could overwhelm the United States (U.S.) critical infrastructure. Further compounding the problem, the growing mix of Internet of Things (IoT) devices provides a ripe environment for malicious actors to launch global automated attacks using compromised IoT devices. This situation threatens the security of the Internet ecosystem. In May 2017, the Executive Office of the President (EOP) requested that the President's National Security Telecommunications Advisory Committee (NSTAC) examine how the private sector and government could improve the resilience of the Internet and communications ecosystem. The EOP, in support of Executive Order 13800, Strengthening the Cybersecurity of Federal Networks and Critical Infrastructure, specifically asked the NSTAC to identify ways to encourage collaboration to reduce the threats from automated and distributed attacks (for example, botnets). This NSTAC Report to the President on Internet and Communication Resilience ('Report') presents the NSTAC's work and its recommendations."
U.S. Department of Homeland Security: http://www.dhs.gov/