http://www.nytimes.com/2010/03/21/world/asia/21gridhtml New York Times 2010/3/21 L M. Wortzel (usa military strategist Chinese researchers . published a paper on my comment: how to attack a small power-grid sub Take it easy. network in a way that would cause a cascading failure of the entire whole US ELECTRICAL POWERGRID ors transfe dges:transmission lines 6
New York Times, 2010/3/21 • L.M. Wortzel (USA military strategist): Chinese researchers …published a paper on how to attack a small power-grid subnetwork in a way that would cause a cascading failure of the entire whole US. http://www.nytimes.com/2010/03/21/world/asia/21grid.html my comment: Take it easy! 6
Start from simple examples
Start from simple examples……
The assumed victim (a) (b) C Remove which node or edge to destroy?
The assumed victim • Remove which node or edge to destroy? 8
So, which one is vulnerable to destroy [a) (c)
So, which one is vulnerable to destroy? 9
Two categories of“ destroyers” To destroy the connectivity of a network errors and failures(random occurrence) purposely attacks(specific targets)
Two categories of “destroyers” To destroy the connectivity of a network, • errors and failures (random occurrence) • purposely attacks (specific targets) 10