Denial of service incident against a South Korean bank
Date of report
  • April 2011
South Korean prosecutors allege that North Korean intelligence conducted a denial of service campaign against a South Korean bank, causing millions of customers to be unable to use the bank's credit cards and ATMs for more than a week.
Suspected victims
  • National Agricultural Cooperative Federation
Suspected state sponsor
  • Korea (Democratic People's Republic of)
Type of incident
  • Denial of service
Target category
  • Private sector
Victim government reaction
  • Yes
Policy response
Suspected state sponsor response