You're reading: Washington Post: US says Russian hackers have penetrated energy and nuclear company business networks

Russian government hackers were behind recent cyber-intrusions into the business systems of U.S. nuclear power and other energy companies in what appears to be an effort to assess their networks, according to U.S. government officials.

The U.S. officials said there is no evidence the hackers breached or disrupted the core systems controlling operations at the plants, so the public was not at risk. Rather, they said, the hackers broke into systems dealing with business and administrative tasks, such as personnel.

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