Hackers have targeted nuclear facilities in the U.S. since May, according to the Department of Homeland Security and the FBI.
The New York Times obtained a so-called urgent joint report by Homeland Security and the FBI that found hackers have been penetrating companies that run nuclear power plants and other energy facilities, as well as manufacturing plants in the U.S. and other countries.
Wolf Creek Nuclear Operating Corporation, which operates a nuclear power plant near Burlington, Kan., is among the targeted companies, the report said.
The report, dated June 28, is tagged with an “amber alert” label, the second-highest rating for the severity of a threat.
There is no evidence the hackers had been able to access the control systems of the facilities, the Times reported.
Wolf Creek told the Times that no “operations systems” were affected and that its corporate network and the Internet were separate from the network that runs the plant.
Bloomberg reported separately Thursday that at least a dozen U.S. power plants were breached. Current and former U.S. officials told Bloomberg that the hackers may be aiming to eventually disrupt the nation’s power supply.
Russia is the chief suspect in the hackings, Bloomberg said. Russia is also suspected as being involved in an international cyberattack that struck computer systems from Ukraine to the U.S.
That attack crippled major firms, banks, and airports in Europe.
A report from agencies in the U.S. intelligence community published in January concluded Russia interfered in the 2016 election.
President Trump is meeting with Russian President Vladimir Putin Friday morning at the G-20 summit, though Trump is not expected to broach Russia’s hacking.
