인프라계층 보안

(출처 : wikipedia)

Infrastructure security is the security provided to protect infrastructure, especially critical infrastructure, such as airports, highways rail transport, hospitals, bridges, transport hubs, network communications, media, the electricity grid, dams, power plants, seaports, oil refineries, and water systems. Infrastructure security seeks to limit vulnerability of these structures and systems to sabotage, terrorism, and contamination.

Critical infrastructures naturally utilize information technology as this capability has become more and more available. As a result they have become highly interconnected, and interdependent. Intrusions and disruptions in one infrastructure might provoke unexpected failures to others. How to handle interdependencies becomes an important problem.

The most recent example of vulnerable infrastructure was the electrical grid in 2003, when Northeastern American areas experienced a power outage that appears to have originated in the Midwest, and possibly from a tree branch.

공항, 병원, 교량, 항만과 같은 주요핵심인프라에서 IT기술을 활용하게 됨에 따라 상호 연계되어 있으므로 이를 보호하기 위한 것이다. 2003년도 미국 북동부 지역의 전력망을 취약한 인프라계층의 실제 예가 되겠다.