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https://www.wsj.com/articles/chinas-secret-weapon-in-south-korea-missile-fight-hackers1492766403

# China Hacked South Korea Over Missile Defense, U.S. Firm Says

**[wsj.com/articles/chinas-secret-weapon-in-south-korea-missile-fight-hackers-1492766403](https://www.wsj.com/articles/chinas-secret-weapon-in-south-korea-missile-fight-hackers-1492766403?emailToken=JRrydPtyYnqTg9EyZsw31FwuZ7JNEOKCXF7LaW/HM1DLsjnUp6e6wLgph560pnmiTAN/5ssf7moyADPQj2p2Gc+YkL1yi0zhIiUM9M6aj1HTYQ==)**

April 21, 2017

This 2015 handout photo from the

U.S. Department of Defense shows a terminal High Altitude Area Defense interceptor being
test launched on Wake Island in the Pacific Ocean.Photo: AFP PHOTO / DoD / Ben
Listerman
Chinese state-backed hackers have recently targeted South Korean entities involved in
deploying a U.S. missile-defense system, says an American cybersecurity firm, despite
Beijing’s denial of retaliation against Seoul over the issue.

In recent weeks, two cyberespionage groups that the firm linked to Beijing’s military and
intelligence agencies have launched a variety of attacks against South Korea’s government,
military, defense companies and a big conglomerate, John Hultquist, director of
cyberespionage analysis at FireEye Inc., said in an interview.

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