# BTC Articoli collegati

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Behind the 2000 BTC Incident: The Fundamental Problem of CEX Ledgers

On February 6, Bithumb, a South Korean cryptocurrency exchange, mistakenly distributed 2,000 BTC each to 249 users due to a unit error during a promotional event—intending to give away 2,000 KRW (≈$1.4) per user. The total erroneous distribution amounted to 62,000 BTC, worth approximately $41.5–44 billion. Although these assets existed only in Bithumb’s internal ledger and not on-chain, they were tradable on the platform, causing BTC/KRW prices to drop nearly 17% within minutes and triggering over $400 million in derivatives liquidations. Bithumb responded within 35 minutes, freezing affected accounts and recovering over 99% of the misallocated BTC. The remaining 1,788 BTC were covered by the exchange’s own funds. The incident exposed a fundamental flaw in centralized exchanges (CEXs): their reliance on internal accounting systems that allow rapid balance adjustments without corresponding on-chain assets. This creates systemic risk, as user balances are essentially IOU entries rather than real assets. The article draws parallels with historical failures like Mt.Gox and FTX, where discrepancies between internal ledgers and actual reserves led to catastrophic collapses. While Bithumb’s quick response limited damage, the event underscores the structural vulnerabilities of CEXs, prompting South Korean regulators to consider stricter oversight. The piece concludes that such incidents highlight the inherent trust asymmetry in CEX operations, where users rely on exchanges to honor ledger entries as real assets—a risk that remains ever-present.

比推Ieri 13:52

Behind the 2000 BTC Incident: The Fundamental Problem of CEX Ledgers

比推Ieri 13:52

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