No one is at all clear at all about the origins of a purported cyber attack against South Korean media and financial organizations yesterday, which left broadcaster and bank networks paralyzed for hours. The obvious culprit is a state-sponsored attack from North Korea, but even if that nation isn't directly responsible, it may not make a difference, given the heightened tensions in the region.
According to reports, three South Korean TV networks, KBS, MBS and YTN, as well as Shinhan Bank and Nonghyup Bank, reported that their networks had suddenly been shut down on Wednesday afternoon, local time. The takedown was apparently not from a distributed denial-of-service (DDOS) attack, but a virus that has apparently infected machines in these organizations and delivered its payload simultaneously. There were scattered reports of users seeing skulls on the screens of the affected machines before they shut down, anecdotal evidence that malware was indeed the cause.
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