Unidentified hackers recently breached at least one US nuclear power plant and the situation is being investigated by federal officials, sources familiar with the matter told ABC News on Wednesday.
The name and location of the plant have not been released, but cyberattacks have affected "multiple nuclear power generation sites this year," according to E&E News, which was the first to report the story.
It is not yet clear who launched the attack and whether it is connected to a global cyberattack that crippled several countries and corporations beginning on Tuesday.
The breach was contained to the business-associated side of the plant, officials said. So far, little information has come out about the origins of the hack, code named "Nuclear 17," but evidence indicates that the attack was not serious enough to prompt alerts from the public safety systems at the Nuclear Regulatory Commission or the International Atomic Energy Agency, E&E reported. The information available thus far indicates that nuclear safety is not immediately at direct risk.