Hackers threaten cyberattack against South Korean banks

A hacker group has threatened a cyberattack against seven major South Korean banks if they do not pay 360 million won ($315,000) in the virtual currency bitcoin.

The group, called Armada Collective, has threatened to carry out a distributed denial-of-service (DDoS) attack if the demanded money is not paid by June 26, South Korean news agency Yonhap reported on Thursday.

Among those affected are the country's three largest banks — KB Kookmin Bank, Shinhan Bank and Woori Bank — and others, such as KEB Hana and NH Bank, according to South Korea's

financial authorities.