20 million people fall victim to S. Korea data leak

Jan 19, 2014
The breach affected at least 20 million people in a country of 50 million

The personal data of at least 20 million bank and credit card users in South Korea has been leaked, state regulators said Sunday, one of the country's biggest ever breaches.

Many major firms in the South have seen customers' data leaked in recent years, either by hacking attacks or their own employees.

In the latest case, an employee from personal credit ratings firm Korea Credit Bureau (KCB) has been arrested and accused of stealing the data from customers of three credit card firms while working for them as a temporary consultant.

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 stolen data includes the customers' names, , phone numbers, and expiration dates, the Financial Supervisory Service (FSS) said in a statement.

The employee later sold the data to phone marketing companies, whose managers were also arrested earlier this month, prosecutors and the FSS said.

The information was taken from the internal servers of KB Kookmin Card, Lotte Card and NH Nonghyup Card.

Regulators have launched investigations into security measures at the affected firms, the FSS said.

"The firms will cover any financial losses caused to their customers due to the latest accident," it said.

An employee of Citibank Korea was arrested last month for stealing the personal data of 34,000 customers.

In 2012, two South Korean hackers were arrested for data from 8.7 million customers at the nation's second-biggest mobile operator.

In November 2011, Seoul's top games developer Nexon also saw the personal information of 13 million users of its popular online game MapleStory stolen by hackers.

In July the same year, from 35 million users of Cyworld—the South's social networking site—was also stolen by hackers.

Explore further: Target says data breach hit up to 110 mn customers (Update 2)

add to favorites email to friend print save as pdf

Related Stories

Target: Customers' encrypted PINs were stolen

Dec 27, 2013

Target said Friday that debit card PIN numbers were among the financial information stolen from millions of U.S. customers who shopped at the retailer earlier this month.

Neiman Marcus is latest victim of security breach

Jan 12, 2014

Luxury merchant Neiman Marcus confirmed Saturday that thieves stole some of its customers' payment card information and made unauthorized charges over the holiday season, becoming the second retailer in recent ...

Recommended for you

Share button may share your browsing history, too

Jul 22, 2014

One in 18 of the world's top 100,000 websites track users without their consent using a previously undetected cookie-like tracking mechanism embedded in 'share' buttons. A new study by researchers at KU Leuven ...

Tokyo police make arrest in massive data leak case

Jul 17, 2014

Tokyo police said Thursday they had arrested an engineer for allegedly stealing massive amounts of personal data from an educational services firm, a leak that may ultimately affect more than 20 million people.

User comments : 0