Bithumb has secured a second consecutive first-instance unjust enrichment win at the Seoul Central District Court, ordering one customer to return about $140,400 (194 million won) in cash from Bitcoin mistakenly credited in a February promotional random-box campaign. The ruling came a day after a $3,620 (5 million won) victory and follows the exchange’s filing in March to recover funds linked to the error. Two other claims remain pending, totaling about $517,000 (714 million won) across four suits. The miscredit occurred when a staff member entered Bitcoin instead of Korean won during processing, distributing roughly 620,000 BTC across hundreds of accounts—far exceeding Bithumb’s actual holdings of about 40,000 BTC. About 1,788 BTC sold in roughly 40 minutes before trading halted, triggering a 17% drop in the BTC/KRW pair. The exchange recovered 99.7% of the misallocated Bitcoin, froze the rest, and provided 110% compensation to affected traders. South Korean regulators classified the incident as a control failure, leading to requirements for five-minute ledger reconciliation and consideration of market circuit breakers.