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South KoreaFinance and insurance2023 – ongoing

Dunamu

Upbit machine-learning fraud detection

Dunamu reported protecting KRW 98.626 billion in 2023 through Upbit's fraud-detection operation

WorkingCompany's own claimOfficial ↗

Problem

Criminals used digital-asset transfers in voice-phishing schemes. Upbit needed to identify suspicious activity before customer funds left the exchange.

Approach

Dunamu developed a machine-learning fraud-detection system that inspected every deposit and withdrawal attempt in real time. It learned transaction patterns to identify unfamiliar suspicious activity. Specialist staff monitored alerts and restricted transfers, with investigators involved in recovery cases.

Results

98.626 billionKRW in customer assets protected from virtual-asset-related crime using FDS in 2023, according to DunamuCompany's own claim[1]

Takeaway

The protected-assets figure covered the fraud-detection operation and human intervention together. Dunamu did not separate the model's contribution from staff actions.

Categories

Business function
Finance, risk and legal
Innovation type
Process innovation
Evidence
Company's own claim

Sources

Source summaries

[1]Dunamu18 Jul 2024

Dunamu described its internally developed machine-learning FDS and specialist response process. It reported KRW 98.626 billion protected in 2023 and described transfer restrictions and cooperation with investigators.

Full details are in the original sources.

Added 1 Nov 2026 · Updated 1 Nov 2026
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