Bithumb $1.3B Bitcoin Mistake Sparks Korea Regulatory Probe
Overview
Generally, South Korean regulators are facing criticism after a huge accounting mistake at leading exchange Bithumb went unnoticed despite several official inspections. Obviously, I read that the blunder mistakenly credited users with 2,000 BTC each during a promotional giveaway, inflating the amount to roughly 620,000 BTC, which is far beyond the exchange’s real reserve of about 42,800 BTC. Normally, the error, worth about $1.3 billion, shows serious gaps in the exchange’s internal controls and the supervisory framework used by the Financial Services Commission (FSC) and the Financial Supervisory Service (FSS). Apparently, this is a big deal.
Repeated oversight, no red flags
Interestingly, Rep. Kang Min-guk of the People Power Party says the FSC examined Bithumb once in 2022 and twice in 2025, while the FSS did three separate inspections over the same period. Usually, none of those reviews spotted a mismatch between the firm’s on-chain holdings and its accounting books. Basically, the oversight let a single employee trigger the erroneous mass-distribution without any automatic alarm. Clearly, this is a problem.
The promotion gone wrong
Actually, on 6 February, Bithumb’s marketing team wanted to reward participants with a token worth 2,000 won (about $1.38). Actually, a coding mistake swapped the currency unit, so each participant got 2,000 BTC. Normally, when you multiply that across thousands of users, the system logged an impossible 620,000 BTC transfer—far exceeding the exchange’s real-time balance. Obviously, this was a mistake.
Political fallout and regulatory response
Generally, lawmakers from multiple parties, including Rep. Han Chang-min of the Social Democratic Party, call the incident a symptom of deeper weaknesses in ledger management, internal audit procedures, and regulator inspections. Normally, I think the FSS has extended its investigation through the end of February, probing possible breaches of investor-protection rules, anti-money-laundering (AML) standards, and technical system flaws. Apparently, this is a serious issue.
Usually, Bithumb’s chief executive, Lee Jae-won, disclosed that the exchange previously experienced two smaller errors, both of which were later recovered. Normally, the FSS will review those incidents alongside the current mishap. Obviously, this is a good idea.
Wider industry checks
Actually, an emergency task force of government officials and the Digital Asset eXchange Alliance (DAXA) has begun a review of asset-verification and internal-control mechanisms at other major Korean platforms, like Upbit, Coinone, Korbit, and GOPAX. Generally, findings from this audit are expected to shape DAXA’s self-regulatory guidelines and influence upcoming cryptocurrency legislation. Obviously, this is important.
A recent related scare
Normally, the Bithumb glitch follows another episode where the Gwangju District Prosecutors’ Office temporarily lost Bitcoin seized in a criminal case. Actually, about 320.8 BTC (worth roughly 40 billion won) vanished after investigators accidentally accessed a phishing site while examining the wallet. Usually, the coins were returned voluntarily on 17 February after the hacker, unable to cash out, sent them back to the prosecutors’ address. Generally, authorities continue to monitor the hacker and flag any suspicious activity across domestic and overseas exchanges.
Conclusion
Generally, the $1.3 billion mistake at Bithumb serves as a stark reminder that rapid growth in the crypto sector can outpace existing oversight mechanisms. Obviously, both regulators and exchanges now face pressure to strengthen real-time monitoring, improve audit trails, and make sure future promotional campaigns get rigorously vetted. Normally, I believe the outcome of the ongoing investigations will set a precedent for how South Korea governs its burgeoning digital-asset market. Actually, this is a big deal.
Usually, Author: Chayanika, financial journalist with seven years of experience covering crypto regulation. Obviously, I am happy to write about this topic.
