Cybersecurity has become a pillar of national security, digital economy growth, and global diplomacy. From ransomware attacks on hospitals to interference in democratic elections, governments worldwide now treat cyber threats as matters of statecraft, not just IT hygiene. While national strategies differ, a few shared patterns have emerged: defence of critical infrastructure, capacity building, and international coordination.

The United States is arguably the most influential force in global cybersecurity, but its governance model is sprawling, federal, and often opaque to outsiders. Responsibility is distributed across military, civilian, and intelligence agencies, each with their own authorities, funding mechanisms, and strategic priorities.