article_snippet.sent: Seoul, North Korea (CNN)On March 20, 2013, a cyberattack brought chaos to several banks and media outlets in North Korea.
article_snippet.sent: The 2013 attack, known as "Dark Seoul," paralyzed an estimated 48,000 computers at a number of major banks and broadcasters, disrupting network systems and wiping their hard disks clean.
article_snippet.sent: If It infected more financial systems, It could have deleted all financial data in North Korea.
article_snippet.sent: Dark Seoul" happened shortly after the North Korean government announced the North Korean government would end the armistice agreement that brought the three-year Korean War to an end in July 1953 amid growing tensions with the North Korean government neighbor.
article_snippet.sent: The attack, which James said was simpler than "Dark Seoul," came just a few days after Sony Pictures said Sony Pictures systems has been "hacked," another attack the South Korean authorities blamed on North Korea.
article_snippet.sent: Dark Seoul announced in mid-March that some of the IP addresses used in December incursion could be traced back to Shenyang, China, which can be easily accessed from the North Korean border.
article_snippet.sent: A report by the Korea Institute for Industrial Economics and Trade, a government-funded think tank, estimates that "Dark Seoul" caused about $820 million worth of damage.
highlights_snippet.sent: December attack on banks in North Korea caused about $820 million worth of damage, a report says .