Introduction

The Defense Industrial Base Cybersecurity (DIB CS) Program , formally designated as DCISE3 , is a voluntary initiative spearheaded by the Department of Defense Cyber Crime Center (DC3) to fortify cybersecurity defenses among suppliers within the Department of Defense (DoD) supply chain. Designed to counter the escalating sophistication and frequency of cyber threats targeting critical defense infrastructure, the program integrates advanced monitoring, threat intelligence sharing, and incident response capabilities. Its strategic importance is underscored by the growing exploitation of supply chain vulnerabilities by cyber adversaries, which directly imperils the operational integrity of DoD systems and broader national security.

Despite its theoretical robustness, the program’s voluntary participation model introduces significant variability in adoption rates and user engagement, complicating efforts to assess its real-world efficacy.…