South Korea Fines Matchmaking Agency Over Leak of Sensitive User Data

By Kyu-seok Shim and Jack Kim

SEOUL, April ⁠23 (Reuters) – ⁠South Korea’s data protection agency ⁠said on Thursday it has fined a matchmaking service over ​the leak of its members’ sensitive personal information, including their weight, blood type and whether ‌they were previously married.

The Personal ‌Information Protection Commission said in a statement the company, Duo, failed to implement ⁠adequate measures ⁠to safeguard their membership database and was slow to take action ​after its system was hacked last year.

It ordered Duo to pay a 1.21 billion won ($815,400) fine, take corrective action to improve how it handles personal data and to fully disclose ​details of the incident.

Hackers gained unauthorised access to the company database in January ⁠last ⁠year and downloaded private ⁠personal information ​of more than 420,000 current and former members. The data also included phone numbers, ​addresses, schools graduated from ⁠and workplaces, it said.

The commission said Duo also violated regulations on the collection and storage of personal data, such as citizenship ID numbers and passwords, and failed to meet a requirement to delete the information of nearly 300,000 members gathered more ⁠than five years ago.

Duo is one of South Korea’s best-known matchmaking services, in ⁠a country where many have long relied on such services in some form or other to find partners.

The company said in a statement it respected the agency’s findings and “deeply regrets that we failed to adequately protect our members’ personal data.”

It said the breach resulted from a “hacking attack that was extremely difficult to detect or prevent.”

Duo says on its website its services have led to more than 53,000 weddings and seven couples tying the ⁠knot on average every day. It had 36,000 members as of this week, the website said.

A number of South Korean companies and online platforms have suffered breaches of customer data as a result of hacking or staff ​misconduct, prompting a government crackdown following a public outcry.

(Reporting by Jack KimEditing by Ed Davies)

Copyright 2026 Thomson Reuters.

Leave a Comment