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South Korea fines three firms over weak security, misuse of resident ID numbers

By Wooyoung Lee ( April 23, 2026, 07:40 GMT | Insight) -- South Korea’s privacy watchdog on Thursday said it had imposed a combined fine of about 4.7 billion won ($3.2 million) on three companies in the telemarketing, matchmaking and cemetery sectors for data breaches caused by inadequate security safeguards and for unlawful collection and use of resident registration numbers, one of the most tightly regulated categories of personal data in South Korea.Three separate sanctions announced by South Korea’s privacy watchdog on Thursday underscore the need for businesses to implement adequate security safeguards against hacking attacks and data breaches and to comply with strict rules on collecting and processing resident registration numbers....

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