Infrastructure security is the security provided to protect infrastructure, especially critical infrastructure, such as airports, highways [1] rail transport, hospitals, bridges, transport hubs, network communications, media, the electricity grid, dams, power plants, seaports, oil refineries, liquefied natural gas terminals[2] and water systems. Infrastructure security seeks to limit vulnerability of these structures and systems to sabotage, terrorism, and contamination.[3]
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 in others, which makes handing interdependencies a key concern.[4]
There are several examples where an incident at one critical infrastructure site affects others. For example, in 2003, the Northeastern American areas experienced a power outage that appears to have originated in the Midwest, and possibly from a tree branch.[5] In 2013, damage caused by a sniper attack at an electrical substation in California threatened power distribution throughout Silicon Valley.[6] The 2020 Nashville bombing caused telecommunications outages in several states.
^"TSA: Highways". Archived from the original on 2008-12-02. Retrieved 2008-12-07.
^Trakimavicius, Lukas. "Required: Sentinels for Europe's Maritime Lifelines". Center for European Policy Analysis. Retrieved 2023-07-26.
^"TSA | Who We Are". Archived from the original on 2008-12-16. Retrieved 2008-12-07.
^Cite error: The named reference electrical-defense was invoked but never defined (see the help page).
^"Archived copy". Archived from the original on 2015-12-30. Retrieved 2009-10-25.{{cite web}}: CS1 maint: archived copy as title (link)
^Martinez, Michael (8 February 2014). "Sniper fire on Silicon Valley power grid spurs ex-regulator's crusade". CNN. Retrieved 2020-01-27.
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