Zero Trust Architectures for Military and Government Cybersecurity

Abstract

The rising sophistication of cyberattacks against government institutions and military systems necessitates a shift from traditional perimeter-based security models to Zero Trust Architectures (ZTA). Unlike conventional models that assume trusted internal networks, Zero Trust enforces strict verification, continuous monitoring, and least-privilege access at every stage. This paper examines the critical role of Zero Trust in military and governmental cybersecurity, where national security, classified intelligence, and mission-critical operations are at stake. It explores the threat landscape targeting these domains, evaluates the principles and technological enablers of Zero Trust, and highlights its application in securing sensitive infrastructures. The discussion underscores how Zero Trust not only enhances defense against advanced persistent threats and insider risks but also aligns with policy, compliance, and interoperability demands across agencies. By adopting ZTA, military and government organizations can achieve greater resilience, adaptability, and assurance in safeguarding digital sovereignty.