BBC news – South Korea defence chiefs broke the unspoken rules on 19 February by outlining their aim to develop a cyber-tool aimed specifically at knocking out North Korea’s nuclear capabilities, according to Yonhap news agency.
Their blueprint appears to be a 2010 cyber-attack on Iran, which used software known as Stuxnet to damage nuclear facilities. Although the US and Israel are often accused of launching the attack, neither nation admitted involvement.