A staggering system error at Bithumb, one of South Korea’s premier cryptocurrency exchanges, briefly created phantom Bitcoin worth over $43 billion on February 6, 2026. The mishap, which occurred within the company’s internal ledger, caught the attention of the country’s financial authorities and the Financial Services Commission, prompting intense scrutiny of crypto exchange oversight and risk management across the sector.
A Single Typo Floods Accounts with 620,000 BTC
The incident was traced back to Bithumb’s “Random Box” promotional event. Instead of crediting 2,000 Korean won as a reward to each of the 695 participants, an employee mistakenly entered “BTC” instead of “KRW.” As a result, each eligible user received an astonishing 2,000 Bitcoin in their accounts—far exceeding the value intended by the campaign.
In total, about 620,000 Bitcoin were accidentally distributed—an amount that dwarfed Bithumb’s actual reserves, which hovered around 46,000 Bitcoin at the time. While the surge existed only in the exchange’s internal records and not on the blockchain itself, it created a huge accounting imbalance that threatened the platform’s financial stability.
Swift Selloffs Rock Market, Bithumb Freezes Accounts
The sudden spike in account balances pushed several users to initiate massive sell orders, causing Bitcoin’s price on Bithumb to tumble by 15 to 17 percent within a matter of minutes. Realizing the severity of the error, Bithumb’s management intervened within 35 minutes, freezing the affected accounts in an attempt to halt the wild price swings and limit the fallout.
Thanks to rapid intervention measures, most of the erroneously credited Bitcoin were retrieved. Roughly 618,212 Bitcoin were clawed back, effectively containing the vast majority of the damage; the remaining unrecovered amount was estimated at around 125 Bitcoin. Bithumb pledged to compensate any verified user losses at 110 percent and announced the establishment of a 100 billion won protection fund to cover unforeseen risks.
Regulators Probe Controls Amid Calls for Reform
The magnitude of the error raised pressing questions about the effectiveness of financial oversight in South Korea. Following the fiasco, the Financial Supervisory Service escalated its routine review into a full-scale investigation, focusing on how a single mistaken entry could bypass existing safeguards.
In parliament, the incident brought attention to gaps in crypto exchanges’ internal control frameworks. Regulators moved to expedite reforms for the Digital Asset Basic Act, eyeing measures such as capping individual ownership stakes between 15 and 20 percent, introducing mandatory dual approval for large asset transfers, and strengthening approval workflows within exchanges.
Paper Bitcoin Controversy Exposes Systemic Weaknesses
The episode reignited the debate over “paper Bitcoin”—virtual assets not backed by actual blockchain holdings and created solely within exchange accounting systems. Industry figures emphasized that the root of the problem lay not in blockchain technology but in the operational risks inherent to centralized platforms.
For South Korea’s crypto industry, the saga underscored the critical need for resilient infrastructure and rigorous internal controls. Authorities indicated that, depending on the outcome of ongoing inquiries, sweeping regulatory changes for exchanges could be on the horizon.
