South Korea’s financial watchdog, the Financial Supervisory Service (FSS), has launched a full-scale investigation into local cryptocurrency exchange Bithumb following a major error that resulted in the accidental distribution of 620,000 Bitcoin (BTC), valued at $43.1 billion. The mistake occurred on February 6 when a Bithumb staff member mistakenly input Bitcoin (BTC) instead of Korean won (KRW) as part of a promotional giveaway.
Initially, the FSS planned only a routine inspection of the exchange. However, the scale of the error led to an immediate escalation of the probe. Authorities are investigating how Bithumb was able to distribute an amount of Bitcoin far greater than its actual reserves, which were reported to be around 46,000 BTC at the time.

While Bithumb acted quickly to recover the majority of the mistakenly distributed Bitcoin—99.7%—the exchange faces scrutiny for its internal controls. Users reportedly sold off 1,788 BTC during the confusion, and Bithumb has since managed to recover 93% of these assets, although 125 BTC remain unaccounted for. To compensate for the losses, Bithumb has promised to refund users at 110% of their losses.
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The incident has raised concerns about the security and operational integrity of cryptocurrency exchanges in South Korea. Critics argue that such mistakes could undermine market stability, with some lawmakers warning that this could lead to a “bank run” scenario. There are also concerns that Bithumb’s actions could suggest it issued Bitcoin it did not own, further damaging trust in the platform.
In response, South Korea’s ruling Democratic Party has called for stricter regulations on cryptocurrency exchanges, including limiting individual stakes in exchanges to no more than 15% to 20%. This proposal is seen as part of a broader effort to address vulnerabilities exposed by the Bithumb incident.
Additionally, financial authorities are exploring new legal frameworks that could hold cryptocurrency exchanges to the same standards as traditional financial institutions. This would ensure stronger oversight and help prevent similar incidents in the future.
The Bithumb error has underscored the need for greater transparency and robust internal controls within cryptocurrency exchanges, particularly as the industry continues to expand and attract more regulatory attention. As the investigation continues, Bithumb and other exchanges may face increased pressure to implement more rigorous measures to safeguard users and ensure market stability.
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