For a brief, surreal window on Friday evening, hundreds of South Korean crypto traders opened their apps to find they had suddenly become richer than most nations. In what is shaping up to be one of the most expensive “fat finger” errors in financial history, the cryptocurrency exchange Bithumb accidentally distributed nearly $44 billion worth of Bitcoin to its users, triggering a chaotic flash crash and a frantic scramble by exchange officials to reverse the damage.
The incident, which Bithumb confirmed on Saturday, stemmed from a promotional giveaway that went spectacularly wrong. Instead of a small cash reward, a data entry error sent thousands of Bitcoins to customer wallets, forcing the exchange into emergency stasis. While the platform says it has recovered the vast majority of the funds, the blunder has sent shockwaves through the country’s already volatile digital asset market.
The “Random Box” Roulette
At first, everything seemed fine. The company planned to have a “Random Box” promotional event to get all of Bithumb’s users involved with the company. They were simply going to give away small cash amounts ($2.00 – $50.00) to a lucky few to engage customers in a new way.
Local news reports and Bithumb’s own comments say that a staff member was responsible for processing the distribution of the lottery and mixed up the currency units. They were supposed to have recorded the value in “KRW” instead of “BTC”.
The result was a mathematical catastrophe. Winners who were supposed to receive enough money for a convenience store snack instead found at least 2,000 Bitcoins deposited into their accounts. As of today’s prices, the value of 2,000 BTC would be approximately $140 million (140M) — a tremendous amount of money that simply appeared in hundreds of different accounts at the same time.
35 Minutes of Mayhem
As soon as 620,000 Bitcoins were added, which was around 3% of the physical supply of Bitcoin in existence, panic immediately erupted in the order books of the exchange where they were traded. Once traders understood what had happened, many attempted to sell as quickly as possible causing a localized flash crash on the Bithumb platform. Bitcoin prices on the exchange slumped 17% in minutes, plunging to 81.1 million won (roughly $58,000) while global prices remained steady above $70,000.
“I thought my app was broken,” said one user on a local messaging board. “I saw the balance and my hands started shaking. I tried to sell, but the screen just froze.”
Bithumb’s internal monitoring systems triggered an emergency halt 35 minutes after the erroneous distribution began. The exchange froze trading and withdrawals for the 695 customers affected by the error, effectively locking the digital doors to prevent the funds from leaving the platform.
The Great Clawback
In a statement released Saturday, Bithumb announced it had successfully recovered 99.7% of the erroneously distributed funds. The total value of the mistake was estimated at 60 trillion won ($44 billion).
“We would like to make it clear that this incident is unrelated to external hacking or security breaches, and there are no problems with system security or customer asset management,” the company said in a statement aimed at calming jittery investors.
Nevertheless, the remaining 0.3% of funds (about $130 million worth of Bitcoin) may be difficult to recover because users could have withdrawn their Bitcoin into private wallets or other exchanges before the freeze began. Bithumb has not yet clarified who will bear the cost for the unrecovered portion.
Reputation on the Line
The incident comes at a delicate time for Bithumb, which has been locked in a fierce battle for market share with its larger rival, Upbit.
South Korea has a large and vibrant market for cryptocurrencies, and one of the things the world knows most about South Korean Cryptocurrency exchanges is the “Kimchi Premium”, which occurs when cryptocurrencies are typically traded at a higher than average price in South Korea compared to the rest of the world because of high demand from local investors. Trust is an extremely important aspect of conducting business on the exchanges in this highly competitive marketplace.
Analysts suggest this operational failure could severely damage Bithumb’s credibility. “This isn’t just a glitch; it’s a failure of basic internal controls,” said a Seoul-based market analyst. “In traditional finance, a mistake of this magnitude would trigger immediate regulatory audits. We expect the Financial Services Commission to take a very close look at this.”
A History of “Fat Fingers”
While the scale of Bithumb’s error is unprecedented, it is not the first time a typo has rocked the crypto world. Crypto.com mistakenly sent an Australian woman $10.5 million instead of a $100 refund in 2021, and they didn’t catch the error for seven months, after which she had already purchased luxury properties with the funds.
Bithumb’s 35-minute reaction time likely saved the company from insolvency. As trading resumed and prices recovered to 104.5 million won on Saturday, the exchange returned to business as usual—though likely with a few new layers of approval required for its next giveaway.
