South Korean nuclear reactors hit by cyber attack

South Korea's nuclear power operator said on Sunday that cyber attacks on non-critical operations at the company's headquarters are still continuing, a week after executives revealed that the organisation's systems had been hit.

The Korea Hydro & Nuclear Power Co said on Monday last week that its internal systems had been hacked but only non-critical data had been stolen, and operations were not at risk.

This week President and CEO Cho Seok said the state owned company has been intensifying its security operations in response, but gave no details of the continued cyber attacks or the company's response, citing security reasons. "Cyber attacks on KHNP's (headquarters) operations and administration are still continuing now," he told a news briefing.