Structural Evolution and Quantitative Analysis of the Cyber Attack Lifecycle: A Multi-Framework Integration of the Cyber Kill Chain and the Unified Kill Chain

The conceptualization of cybersecurity has fundamentally shifted from a reactive, perimeter-baseddefense posture to an intelligence-driven, proactive paradigm centered on the understanding of theadversarial lifecycle.1 At the nexus of this shift is the Cyber Kill Chain, a methodology adapted frommilitary targeting doctrine that identifies the structured phases an adversary must complete to achieve astrategic objective.1 As organizations navigate an increasingly complex threat landscape character