US investigating Siemens security flaw

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The US government is looking into claims by a cyber security researcher that flaws in software for specialised networking equipment from Siemens could enable hackers to attack power plants and other critical systems.

Justin W Clarke, an expert in securing industrial control systems, disclosed at a conference in Los Angeles on Friday that he had figured out a way to spy on traffic moving through networking equipment manufactured by Siemens' RuggedCom division.

The Department of Homeland Security said in an alert released on Tuesday that it had asked RuggedCom to confirm the vulnerability that Clarke, a 30-year-old security expert who has long worked in the electric utility field, had identified and identify steps to mitigate its impact. RuggedCom, a Canadian subsidiary of Siemens that sells networking equipment for use in harsh environments such as areas with extreme weather, said it was investigating Clarke's findings, but declined to elaborate.