Critical infrastructure refers to the essential systems, assets, and networks - such as power grids, water supplies, transportation, hospitals, and communication systems - that are vital for the functioning of society and the economy. If these infrastructures are disrupted or damaged, it can lead to severe consequences for public safety, national security, and economic stability. Governments often prioritize the protection of critical infrastructure to prevent large-scale disruptions caused by natural disasters, cyberattacks, or other threats.