Authorities in South Korea are in “emergency mode” as they scramble to head off a threatened cyber attack on the nation’s biggest banks.
A hacker group known as the Armada Collective on Wednesday said it would hit the country’s seven main lenders with distributed denial-of-service — or DDoS — attacks if they failed to pay a ransom in virtual currency bitcoin.
The threats come just a month after the landmark WannaCry cyber attack that infected hundreds of thousands of computers across 150 countries, including South Korea, and which security officials have since linked to North Korea.
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