Duo
In short: Duo is a South Korean premium matchmaking firm. DII and Korean press report that it was fined 1.2 billion won in April 2026 over a data breach, and that the Fair Trade Commission fined it 345 million won in late August 2026 over advertising claims about its members. DII covers both cases as warnings for matchmaking operators.
Key facts
| Type | Events and matchmaking |
|---|---|
| Headquarters | South Korea |
| Fact | Fined 1.2 billion won (about $810,000) over a data breach [Dating Industry Insights, April 2026] |
| Fact | South Korea fined a matchmaking agency over the leak of sensitive user data [Reuters via Internazionale, 23 April 2026] |
| Fact | Fair trade watchdog fined a matchmaking firm for exaggerating membership figures [The Korea Times, 26 August 2026] |
| Fact | Fined 345 million won by the Fair Trade Commission over misleading advertising [Dating Industry Insights, 2 September 2026] |
| Fact | Duo was penalised over claims of having the most doctors and elite graduates among its members [Korea JoongAng Daily] |
About Duo
Duo is a South Korean matchmaking firm. DII describes it as a premium matchmaker, and Korean press has reported on its advertising and its membership claims.
In April 2026 Reuters and other outlets reported that South Korea fined a matchmaking agency over the leak of sensitive user data. DII, which identifies the agency as Duo, reports the fine as 1.2 billion won, about $810,000. Korean press also reported that victims of the breach criticised the fine as too lenient.
In late August 2026 the Korean press reported that the fair trade watchdog fined a matchmaking firm for exaggerating its membership figures, and that Duo was penalised over claims of having the most doctors and elite graduates among its members. DII reports the fine as 345 million won, imposed by the Fair Trade Commission, and covers it as a warning about opaque promises in matchmaking.
The details above are the fines as reported by regulators and the press, and are not findings by DII.
Stories about Duo
- Duo's ₩345M Fine: A Warning Shot for Matchmaking's Opaque Promises
South Korea's Fair Trade Commission fined matchmaking firm Duo ₩345M (£184,000) for false advertising about member quality and matchmaker numbers. - Duo's $810K Fine: A Wakeup Call for Asia's Matchmaking Industry
South Korea fined matchmaker Duo 1.2 billion won ($810,000) over a January 2025 breach affecting nearly 430,000 users and a three-day reporting delay.
Questions about Duo
What is Duo?
Duo is a South Korean premium matchmaking firm, according to DII.
Why was Duo fined?
DII reports a 1.2 billion won fine over a data breach in April 2026 and a 345 million won fine from the Fair Trade Commission over advertising in August 2026.
What does Duo do?
Duo is a South Korean premium matchmaking firm. DII and Korean press report that it was fined 1.2 billion won in April 2026 over a data breach, and that the Fair Trade Commission fined it 345 million won in late August 2026 over advertising claims about its members.
Where is Duo based?
Duo is based in South Korea.
Sources
- Dating Industry Insights: Duo's $810K Fine: A Wakeup Call for Asia's Matchmaking Industry
- Reuters via Internazionale: South Korea fines matchmaking agency over leak of sensitive user data
- The Korea Times: Fair trade watchdog fines matchmaking firm for exaggerating membership figures
- Dating Industry Insights: Duo's ₩345M Fine: A Warning Shot for Matchmaking's Opaque Promises
- Korea JoongAng Daily: Matchmaker service Duo penalized for claiming the most doctors and elite graduates