The US Nuclear Regulatory Commission (NRC) has been hacked three times in the past three years, a report has revealed.
According to Computer Weekly, two of the attacks were attributed to criminals of foreign descent, while the third attacker has not been identified.
The NRC maintains high-value data, including the location and condition of nuclear reactors, and inventories of plants that handle weapons-grade materials, but US agencies are not required to report data breaches, unless there is evidence that personal information has been exposed.
News of the hacks comes nine months after the US published a draft framework of voluntary cyber security standards aimed at reducing risks to companies providing critical national infrastructure.
