Bithumb Incident Exposes Virtual Asset Market System Vulnerabilities

The virtual asset market in South Korea is facing scrutiny following a recent incident at Bithumb, the country's second-largest cryptocurrency exchange.

In late March, Bithumb held a random box event where customers were eligible to win between 2,000 won and 50,000 won. However, an employee made a mistake during the prize payment process, entering 'minimum 2,000 Bitcoin' instead of 'minimum 2,000 won.'

This simple error had far-reaching consequences, as approximately 620,000 won in total prize money was paid out as 620,000 Bitcoin, equivalent to around 62 trillion won at the time. The mistaken payment caused Bithumb's Bitcoin price to diverge from other exchanges and plummet.

The incident has raised concerns about the security of exchange ledger trading systems, which bypass blockchain verification. This can make them vulnerable not only to simple mistakes but also to insider manipulation.

To prevent incidents like this in the future, individual exchanges must strengthen internal controls, such as establishing real-time asset reconciliation systems and requiring multi-party approval for large asset transfers.

Financial authorities must also enhance supervision and monitoring of individual exchanges' internal controls. Ultimately, they should work towards building a cryptocurrency market system where independent institutions divide core functions, similar to the stock market.