ZeroFox’s 2023 white paper, The External Cybersecurity Guide, addresses how U.S. public sector agencies can defend against cyber threats in the gray space—digital platforms outside traditional perimeters. It defines external cybersecurity as the orchestration of human and machine intelligence to identify, protect, and disrupt threats across social media, deep and dark web environments, and public-facing assets. The paper highlights elements like digital risk protection, threat intelligence, adversary disruption, and data breach response. It urges agencies to replace fragmented, ad hoc security measures with unified, intelligence-driven platforms that enhance visibility, accelerate takedowns, and strengthen public trust through proactive monitoring and response.

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