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Korean Crypto Exchange Upbit Faces ₩44.5 Billion Hack, Full Customer Reimbursement Completed

Korean Crypto Exchange Upbit Faces ₩44.5 Billion Hack, Full Customer Reimbursement Completed

Upbit’s operator Dunamu used on-chain tracking to freeze ₩2.6B in compromised funds, ensuring full reimbursement and service restoration amid ongoing investigation.

Fact Check
The statement is assessed as 'likely true' with high confidence. The core event, a major unauthorized outflow from Upbit, is confirmed by multiple high-authority sources, including major newspapers like Chosun Ilbo and Korea JoongAng Daily, and the blockchain security firm SlowMist. The specific amount of ¥4.8 billion is strongly supported by two of these sources. Both the Chosun Ilbo and the Korea JoongAng Daily explicitly report a loss of 44.5 billion Korean won, which converts to approximately ¥4.8-¥4.9 billion, closely matching the figure in the statement. There is one piece of conflicting evidence from the blockchain security firm SlowMist, which reports a slightly higher amount of approximately 54 billion KRW (approx. ¥5.9 billion). While this creates a minor discrepancy regarding the exact value of the outflow, it does not invalidate the general truth of the event or the order of magnitude. Given that two highly credible news organizations concur on a figure that aligns with the statement, the weight of the evidence leans heavily towards the statement being accurate. The conflicting report prevents absolute certainty but does not undermine the overall high probability of the statement's truthfulness.
Summary

Upbit, South Korea’s leading cryptocurrency exchange, suffered a ₩44.5 billion breach impacting both corporate and customer funds. All customer losses were covered from corporate reserves. Dunamu, the exchange’s operator, froze ₩2.6 billion ($1.77 million) in compromised assets using its on-chain tracking system, tracing stolen funds sent to external wallets. Deposit and withdrawal services, paused after detecting suspicious outflows, resumed on December 6. Authorities are still investigating possible involvement of North Korea’s Lazarus Group.

Terms & Concepts
  • Crypto Exchange: A marketplace for buying, selling, and trading cryptocurrencies.
  • Blockchain Tracking: The process of monitoring cryptocurrency transactions across blockchain networks to trace the movement of funds.
  • Lazarus Group: A North Korean state-sponsored hacker group linked to various cyberattacks, often targeting financial institutions and cryptocurrency platforms.