Which response best describes DHS Enhanced Cybersecurity Services (ECS)?

TheEnhanced Cybersecurity Services (ECS)is a voluntary information-sharing program managed by the Department of Homeland Security (DHS) Cybersecurity and Infrastructure Security Agency (CISA). The program is best described as a mechanism that allowsDHS to share sensitive and classified indicators of malicious cyber activity with approved Commercial Service Providers (CSPs). These CSPs, in turn, use that information to protect their customers—specifically US-based public and private entities—from advanced cyber threats.

Unlike a general partnership (Option B) or a law enforcement process for arrests (Option C), ECS is a technical defensive program. It "enhances" the security of critical infrastructure by providing high-level threat intelligence that the private sector might not otherwise have access to. The program focuses on three main services: Email filtering, DNS sinkholing, and Netflow analysis. By sharing "indicators" (such as malicious IP addresses or file hashes), DHS enables CSPs to block cyber-attacks before they reach the networks of the participating organizations.

For theCEDPprofessional, ECS represents a key component of theNational Cyber Incident Response Plan (NCIRP). It emphasizes the principle of "Public-Private Partnership" in protecting the nation's critical infrastructure. Participating in ECS allows an organization to benefit from the federal government’s unique visibility into global cyber threats. Because it isvoluntary, it respects the privacy and autonomy of private entities while providing them with a "shield" against sophisticated nation-state actors and cyber-criminal organizations that target sectors such as energy, water, and healthcare.