Vunderkind
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South Korean regulators have punished three credit card companies for their role in the country's largest-ever theft of financial data last month.
KB Kookmin Bank, Lotte Card and NH Nonghyup Card will each be fined 6 million won (£3,371; $5,640).
They will also be banned from issuing new credit cards for three months.
This comes after financial data on more than 20 million people - more than 40% of South Korea's population - was stolen and sold to marketing firms.
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