The Internet provides an easy, low-cost and low-risk means for nonstate actors or terrorist groups to amplify the impact of any attack. But a large-scale cyberattack on critical infrastructure could prove devastating. Whether it’s called “Cyber 9/11” or “Cyber Pearl Harbor,” senior U.S. officials, including the president, have warned of the possibility of attacks launched by foreign hackers that could cripple the country by taking down the power grid, water infrastructure, transportation networks and the financial system.
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