The rise of dual-use infrastructure in the Arctic reflects the growing integration of commercial and military space systems. Companies provide vital connectivity, navigation, and intelligence services, allowing for reduced costs and expanded access. It also introduces risks: dual-use assets blur civilian and military functions, making them potential conflict targets; Arctic ground stations are vulnerable to cyberattacks, jamming, and physical disruption; and private firms may alter service availability in crises, creating operational uncertainty. This brief examines how the growing reliance on dual-use space infrastructure in the Arctic driven by commercial-military integration creates both strategic opportunities and security vulnerabilities. It recommends segmenting commercial networks, building robust public-private partnerships with clear liability frameworks, raising cybersecurity standards, and regulations to support innovation.