In 2022, more than $8 billion in customer funds vanished almost overnight when FTX — at the time the second-largest crypto exchange in the world — collapsed. Users logged in to find their accounts frozen. Withdrawals stopped. The money was gone. The FTX collapse explained everything skeptics had been warning about for years: when you hand your crypto to someone else to hold, you are trusting them not to steal it. That trust turned out to be wildly misplaced.
FTX was not alone. Within the same twelve-month stretch, Celsius Network locked $4.7 billion in user deposits. BlockFi froze withdrawals. Voyager Digital filed for bankruptcy. Each company had different branding and different pitch decks, but the same fundamental problem: they were doing things with customer money that customers did not know about — and that the companies hoped no one would ever find out about.
Here is what actually happened, why the warning signs were visible in advance, and what it means for anyone who holds crypto today.
What FTX Actually Did with Your Deposits
FTX was founded by Sam Bankman-Fried and presented itself as a sophisticated, professionally-run exchange. It had celebrity endorsements, stadium naming rights, and a reputation for being the “responsible adult” in crypto. Behind the scenes, it was something else entirely.
FTX had a sister company called Alameda Research — a trading firm also controlled by Bankman-Fried. What customers did not know was that FTX was secretly routing their deposited funds to Alameda to use for trading, investments, and venture bets. This is called commingling funds — mixing customer money with company money — and it is illegal in traditional finance for an obvious reason: the company loses the money, and the customers lose everything.
That is exactly what happened. Alameda made bad bets. The market turned. When a competitor posted FTX’s balance sheet showing the exchange was holding billions in its own exchange token (FTT) as an “asset,” the illusion cracked. Customers tried to withdraw $6 billion in a single day. FTX could not cover it. The doors closed.
The specific number that matters: at the time of bankruptcy, there was an estimated $8 billion gap between what FTX owed customers and what it actually had. That money did not disappear into thin air — it was spent, traded away, or loaned to related parties who could not pay it back.
How Celsius and BlockFi Ran the Same Playbook
Celsius Network sold a different version of the same trap. Instead of being an exchange, Celsius was a lending platform. You deposit crypto, they pay you interest — sometimes 10%, 15%, or higher. The pitch was simple: earn yield on your Bitcoin while it sits there.
What Celsius did not make clear was how it generated those yields. The company was lending customer deposits to other firms, investing in risky DeFi (decentralized finance — automated lending and trading protocols) pools, and engaging in rehypothecation — using the same collateral multiple times to back multiple loans simultaneously. This is the crypto equivalent of a bank lending out 95 cents of every dollar deposited, except without any deposit insurance and without regulators requiring them to hold reserves.
When the crypto market fell sharply in early 2022 — Bitcoin dropped roughly 70% from its peak — many of Celsius’s counterparties could not repay their loans. Celsius had promised customers they could withdraw anytime. That promise was physically impossible to keep. In June 2022, Celsius froze $4.7 billion in customer assets. Most customers eventually recovered some fraction of their deposits through bankruptcy proceedings — a process that took years.
BlockFi operated similarly. It offered high-yield crypto accounts, loaned funds to institutional borrowers (including a significant exposure to Alameda Research itself), and when FTX collapsed, BlockFi went down with it. The companies were so entangled that FTX’s failure took BlockFi down within weeks.
The Warning Signs Were There — If You Knew What to Look For
The hardest part of all this is not the loss itself — it is that these collapses were predictable. Not in the sense that anyone knew the exact date or sequence of events, but in the sense that every one of these companies was displaying red flags that should have triggered serious skepticism.
The red flag framework from The $6 Billion Mistake — a book that documents how billions were lost in crypto scams and failures — identified specific patterns to watch for. FTX, Celsius, and BlockFi hit nearly every one:
- Unsustainable yield promises. If a company is offering 15% annual returns on Bitcoin when the underlying asset yields nothing on its own, ask where that money is coming from. The answer is almost always: from the next customer deposit. That is not yield — that is a Ponzi structure.
- Opaque financials. Celsius never released a full audited balance sheet showing its actual reserve levels. FTX’s balance sheet, when finally leaked, showed the exchange was essentially insolvent and holding its own made-up tokens as primary assets.
- Founder control concentration. Bankman-Fried controlled both FTX and Alameda. There was no meaningful separation, no independent board oversight, no checks on his ability to move funds between entities. When one person controls the money and the company simultaneously, there is no one watching the store.
- Regulatory ambiguity used as a feature. Both FTX and Celsius operated in regulatory gray zones, moving between jurisdictions to avoid oversight. This was framed as innovation — in retrospect, it was cover.
- Aggressive marketing and celebrity partnerships. When a financial company spends heavily on stadium naming rights, Super Bowl ads, and celebrity endorsements, that money is coming from somewhere. Customer yield, in many cases.
This is the same pattern documented in rug pulls and smaller crypto scams — just at institutional scale. The red flags framework covered in our rug pull deep-dive applies just as much to major exchanges as it does to anonymous token launches.
What Self-Custody Would Have Changed
Here is the uncomfortable truth: if customers holding funds on FTX, Celsius, or BlockFi had moved those assets to self-custody wallets before the collapses, they would have kept their money.
Self-custody means you hold the private keys to your crypto — not a company, not an exchange, not a lending platform. As covered in Post 31: “Not Your Keys, Not Your Crypto”, the fundamental rule of crypto security is that whoever controls the keys controls the coins. When you deposit to an exchange, you give up your keys. You receive an IOU instead.
IOUs are only as good as the issuer. And in 2022, several major issuers turned out to be insolvent.
This does not mean self-custody is without risk — it comes with its own responsibilities. When you control your own keys, you are responsible for keeping your seed phrase secure (the 12-24 word backup that controls access to your wallet). Lose it or expose it, and you lose your funds just as surely as if the exchange collapsed. But the risk is one you control, not one subject to the decisions of an executive you have never met.
The practical takeaway is not “never use exchanges.” Exchanges are useful — for buying, selling, converting between assets. The mistake is using them as long-term storage. An exchange account is like a wire transfer — a place funds pass through, not a place they live permanently.
The Bottom Line
FTX, Celsius, and BlockFi were not flukes or black swans. They were the predictable outcome of a financial model built on opacity, leverage, and the assumption that customers would not ask hard questions. Billions of dollars belonging to real people evaporated because those people trusted institutions with their money and did not know the warning signs that the institutions were misusing it.
The $6 Billion Mistake framework exists precisely for this reason: not to make you paranoid, but to give you specific, actionable criteria for evaluating who deserves your trust — and who does not. High yield promises. Opaque finances. Founder control. Regulatory evasion. These were not just red flags in hindsight. They were red flags in real time, for anyone who knew to look.
The best protection against the next FTX is not a better exchange. It is owning your own keys.
Ready to move your crypto off exchanges? Download the free guide — Wallet Security: Your Complete Setup Guide — for a step-by-step walkthrough of setting up your first self-custody wallet, securing your seed phrase, and making sure you are protected from the mistakes that cost FTX customers billions. Get the free guide here.