The short answer: when Mt. Gox — once the exchange handling the vast majority of all bitcoin trading — collapsed in February 2014, about 850,000 BTC of customer and company coins were gone. Roughly 200,000 BTC were later found in a forgotten wallet and now fund creditor repayments running until October 31, 2026. Much of the rest was stolen gradually and laundered years before the collapse. And one piece never went anywhere: 79,957 BTC, sitting at the address 1FeexV6b… since March 2011, untouched through every bull market since.
How do you lose 850,000 bitcoin?
Slowly, and without noticing. The dominant account — backed by later blockchain forensics and a U.S. federal indictment — is that intruders compromised the exchange's hot wallet keys as early as September 2011 and siphoned coins for years, while the company's internal ledgers kept showing balances it no longer had. Mt. Gox operated increasingly like a fractional reserve without knowing it. By the time withdrawals froze in February 2014, the vault was long empty; the collapse was just the moment the world found out.
Weeks later came the plot twist: about 200,000 BTC discovered in an old-format wallet the exchange had lost track of. That accident is the only reason creditors are being repaid anything today.
The 1Feex anomaly: a fortune nobody dares touch
In March 2011, in a single transaction, 79,957 BTC from Mt. Gox landed at 1FeexV6b… — then worth under a million dollars, today a nine-digit fortune. And then: nothing. No test shots, no laundering attempts, no movement of any kind in 15 years.
Why would a thief never cash out? The candidate explanations say a lot about how bitcoin actually works:
- The coins are marked. Every chain-analysis firm and major exchange has flagged the address for a decade. The moment those coins touch a regulated venue, alarms sound worldwide. Stolen bitcoin is easy to hold and brutally hard to spend.
- The keys may be lost. Fifteen years is a long time to keep a secret file safe — especially for someone who could never store it with anyone.
- The holder may be beyond reach — imprisoned, dead, or waiting out a horizon we can't see.
The endgame: repayments until October 2026
The recovered coins entered a Japanese civil rehabilitation process, and after a decade of litigation, distributions to creditors began in 2024 — people who lost bitcoin at double-digit prices receiving it back in a six-figure world. The trustee's current final deadline is October 31, 2026, which keeps Mt. Gox permanently in the news cycle this year: every trustee wallet movement triggers a fresh round of "Mt. Gox moves X BTC" headlines. Most are exactly the kind of operational transfers that get misread as market events — which is why we track the wallets, not the rumors.
Questions people actually ask
Was the Mt. Gox bitcoin ever recovered?
Partially. About 200,000 BTC were found in 2014 in an old-format wallet the exchange had forgotten. The rest — roughly 650,000 BTC of customer coins — was stolen over years, mostly siphoned out through 2011–2013. The 79,957 BTC in the 1Feex address is the single largest identified chunk of the stolen funds, and it has never moved.
Who stole the Mt. Gox bitcoin?
U.S. prosecutors indicted two Russian nationals in 2023 for the core 2011 hack and laundering of some 647,000 BTC. Large amounts were laundered through the BTC-e exchange, whose operator was separately convicted. The 1Feex hoard, however, was never cashed out — it sits exactly where it landed in March 2011.
Are Mt. Gox creditors being repaid?
Yes — from the recovered coins, under a Japanese civil rehabilitation plan. Distributions began in 2024, and the trustee has extended the final repayment deadline to October 31, 2026. Repayments come from the recovered ~140,000 BTC pool, not from the stolen 1Feex coins.
Could the 1Feex coins ever move?
Only if whoever holds the private keys signs a transaction — no court order can move them otherwise. If they ever do move, it will be one of the loudest on-chain events in bitcoin history, visible to anyone within seconds. That address is on our permanent watch list.