THE EXISTING POWER DELIVERY system is vulnerable to both natural disasters and intentional attack. A successful terrorist attempt to disrupt the power delivery system could have adverse effects on national security, the economy, and the lives of every citizen. Secure and reliable operation of the electric system is fundamental to national and international economic systems, security, and quality of life.
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Since the terrorist attacks of 11 September 2001, several steps have been taken and initiatives accomplished to enhance the security and reliability of the nation’s current electricity infrastructure. These include the Complex Interactive Networks/Systems Initiative (CIN/SI), a joint program sponsored by the Electric Power Research Institute (EPRI) and the U.S. Department of Defense (DOD); EPRI’s Enterprise Information Security (EIS) program; EPRI’s post–9/11 Infrastructure Security Initiative (ISI); and various North American Electric Reliability Corporation (NERC) initiatives, such as its information sharing and analysis centers (ISACs), public key infrastructure (PKI), and spare equipment database. Information security frameworks for electric power utilities have also been developed by the International Council on Large Electric Systems (CIGRE). A security framework is considered as the skeleton on which various elements are integrated for the appropriate management of security risk. The various elements considered by CIGRE include security domains, baseline controls, and security processes.