Bithumb's $44 Billion Bitcoin Glitch Turns Hundreds Into Billionaires

A simple typo exposed critical vulnerabilities in South Korea's largest crypto exchange operations.

Published on Feb. 9, 2026

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A promotional event at the South Korean cryptocurrency exchange Bithumb went awry when an employee input error distributed approximately 620,000 phantom Bitcoins worth $44 billion instead of the intended 2,000 Korean won per participant. The exchange detected and reversed the error within 35 minutes, but not before 695 users briefly became billionaires. The incident has raised concerns about Bithumb's operational weaknesses and the broader systemic risks in the crypto industry.

Why it matters

This incident highlights the critical vulnerabilities in the operations of major cryptocurrency exchanges, which hold billions in digital assets. The ease with which a simple typo can destabilize an entire platform raises questions about the industry's ability to responsibly manage such large sums of money and the need for tighter regulation and oversight.

The details

On February 6th, Bithumb launched a 'Random Box' promotion that was supposed to distribute 2,000 Korean won (about $1.40) per participant. However, an employee accidentally entered 'Bitcoin' instead of 'won' in the reward field, resulting in the distribution of approximately 620,000 phantom Bitcoins worth $44 billion. Bithumb quickly detected the error, froze affected accounts, and blocked withdrawals, recovering 99.7% of the distributed Bitcoin. However, between 125 and 1,860 BTC (worth $9-130 million) remain unaccounted for.

  • On February 6th, Bithumb launched the 'Random Box' promotion.
  • Within 35 minutes, Bithumb detected the error, froze affected accounts, and blocked withdrawals.

The players

Bithumb

South Korea's largest cryptocurrency exchange, which holds billions in digital assets.

Hwang Seung-wook

Bithumb's VP, who admitted that the incident demonstrates the current weaknesses in the company's systems.

Financial Services Commission

South Korea's financial regulator, which held an emergency meeting and initiated on-site inspections at Bithumb following the incident.

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What they’re saying

“The fact that a single error in setting an event reward unit can destabilize an entire crypto exchange demonstrates the current state of our systems.”

— Hwang Seung-wook, Bithumb VP

What’s next

The Financial Services Commission's investigation into Bithumb's operations is ongoing, and the exchange faces increased scrutiny from regulators over its ability to securely manage billions in digital assets.

The takeaway

This incident underscores the critical need for cryptocurrency exchanges to strengthen their operational controls and security measures to prevent such catastrophic errors, which can trigger widespread market chaos and erode user trust in the industry.