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Inside job leaves 20M Koreans at risk

Insider attack; Stolen credentials; Unauthorized use of employer’s data

An employee at personal credit ratings firm Korea Credit Bureau stole data from clients of three credit card firms, while working for them as a temporary consultant. He then sold it to phone marketing companies.

“Seoul's financial regulators on Sunday confirmed the total number of affected users as at least 20 million, in a country of 50 million,” the AFP reports.

The information was peeled off internal servers of KB Kookmin Card, Lotte Card and NH Nonghyup Card.

The data includes names, social security numbers, phone numbers, credit card numbers and expiration dates.

ThreatWatch is a regularly updated catalog of data breaches successfully striking every sector of the globe, as reported by journalists, researchers and the victims themselves. 


Financial Services


January 19, 2014

reported by


number affected

at least 20 million customers

location of breach

South Korea



location of perpetrators

South Korea

date breach occurred


date breach detected