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S. Korea Recovers From Cyberattacks

Seoul, South Korea — South Korea said Friday it was preparing for the possibility of more cyberattacks as a new team of investigators tried to determine if North Korea was behind a synchronized shutdown of tens of thousands of computers at six South Korean banks and media companies.

Many in Seoul suspect hackers loyal to Pyongyang were responsible for Wednesday’s attack, but South Korean officials have yet to assign blame and say they have no proof yet of North Korea’s involvement. Pyongyang hasn’t yet mentioned the shutdown.

The investigation could take weeks, but an initial finding linked a Chinese Internet Protocol address to one of the banks affected.

South Korea has set up a team of computer security experts from the government, military and private sector to identify the hackers and is preparing to deal with more possible attacks, presidential spokesman Yoon Chang-jung told reporters Friday. He didn’t elaborate on the possibility of more attacks, but said the prime minister would later hold a meeting to discuss ways to beef up cybersecurity at institutions overseeing infrastructure such as roads and electricity.

Determining who’s behind a digital attack is often difficult. But North Korea is a leading suspect for several reasons. It has unleashed a torrent of threats against Seoul and Washington since punishing U.N. sanctions were imposed for Pyongyang’s Feb. 12 nuclear test.