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Low-Tech Thief Steals Data on 100 Million Korean Credit-Card Accounts

Seoul's Gangnam District
Seoul's Gangnam DistrictPhotograph by Esch Collection

In Seoul, the world’s most wired city, the heist of data associated with at least 15 million people’s credit cards was decidedly low tech.

On Sunday, Korea’s Financial Supervisory Service, the federal regulator, disclosed that a massive breach of records maintained by Korea Credit Bureau, a private credit rating company, had allowed unauthorized access to 105.8 million accounts—data that were then sold to loan and financial services marketing companies. The stolen information included names, credit card and bank details, passport numbers, and home addresses and phone numbers.