SBF in Web3

Sam Bankman-Fried, often called SBF, co-founded the crypto exchange FTX and the trading firm Alameda Research. By 2022, those companies had become major counterparties in crypto markets, investors in startups, and sponsors of sports and media deals. In November 2022, FTX entered Chapter 11 bankruptcy. A federal jury later found Bankman-Fried guilty of fraud and related offenses. In March 2024, a judge sentenced him to 25 years in prison. The U.S. Attorney's Office for the Southern District of New York said the sentence followed a scheme that stole more than $8 billion from FTX customers.

His story is not a history of decentralized finance as a whole. FTX was a centralized company that held customer assets and ran an off-chain exchange. It did offer crypto derivatives and related products, and it invested heavily around networks such as Solana. That combination made FTX influential in Web3 discussions, but it also meant customers depended on a corporate operator rather than a blockchain's rules for custody and withdrawals.

Before FTX

Bankman-Fried studied physics at MIT. His criminal sentencing memorandum describes work at the quantitative trading firm Jane Street before he left in 2017 to start Alameda Research. Alameda traded digital assets. One early opportunity was the price gap between bitcoin in South Korea and on exchanges elsewhere, an arbitrage trade that required moving money and crypto across jurisdictions.

Arbitrage is not a special Web3 mechanism. It is the practice of buying an asset where it is cheaper and selling where it is more expensive. It can narrow price differences, but it carries execution, custody, banking, and legal risks. Alameda's early business placed Bankman-Fried in a market with fragmented exchanges, uneven liquidity, and few established risk controls.

FTX launched in 2019. Its own exchange materials advertised spot markets, futures, leveraged tokens, and other products. The company built a consumer-facing brand and raised money from equity investors. The SEC later said FTX raised more than $1.8 billion from investors, including about $1.1 billion from roughly 90 U.S.-based investors, from at least May 2019 onward. Those numbers appear in the agency's December 2022 complaint announcement; they are allegations in a civil enforcement case, not a substitute for the later criminal verdict.

The basic corporate distinction mattered. FTX operated an exchange. Alameda was a proprietary trading firm. Both were founded by Bankman-Fried and operated within a closely connected group of entities. A trading firm can take directional risks with its own capital. An exchange that receives customer assets has a different obligation: customers need to be able to withdraw assets that the exchange says it holds for them. The case against Bankman-Fried centered on the line between those roles.

What FTX had to do with Web3

Web3 is a broad label for applications that use blockchains, wallets, tokens, or decentralized protocols. It does not describe one type of company. FTX was not a decentralized exchange. Its customers opened accounts, deposited assets, and asked FTX to process trades and withdrawals. The company could offer access to blockchain-based assets without making its own custody or trading system decentralized.

FTX and Alameda nevertheless became visible participants in the ecosystem. They backed Solana-related projects and helped launch Serum, an order-book protocol on Solana. Serum's documentation repository describes a central limit order book program deployed on that chain. A central limit order book matches bids and offers at stated prices. Putting that logic on-chain was meant to allow other applications to interact with the same market infrastructure.

That technical design did not remove the risk created by the companies promoting it. After the FTX bankruptcy, the Serum community warned users that the private upgrade authority had been compromised and supported a fork called OpenBook. The OpenBook announcement is a useful example of an operational fact that marketing language can hide: a protocol can run on a public blockchain yet still depend on keys and administrators. Users need to distinguish the chain's public ledger from the control points around an application.

FTX also issued FTT, an exchange token. FTX described FTT in a token white paper as a token with exchange-related benefits, including fee discounts and a buy-and-burn program. A token issued by a company is not the same thing as an independently collateralized reserve asset. Its price may reflect demand for the issuer's platform, and the issuer's health may in turn depend on the token's price. That circular exposure became central to public scrutiny of FTX and Alameda.

Public positions and political activity

Bankman-Fried became a regular speaker on crypto policy. In October 2022, he published an FTX policy proposal that called for sanctions screening, reporting of suspicious transactions, and rules for regulated crypto businesses. The proposal also addressed decentralized finance. It drew public criticism from some DeFi developers and advocacy groups, who argued that parts of it would impose centralized compliance expectations on protocols and interfaces. The proposal records Bankman-Fried's stated position. It does not establish that its approach was technically or legally required.

He also made political contributions. The Department of Justice said at sentencing that Bankman-Fried used misappropriated customer money for political donations, among other expenditures. The jury verdict announcement says he was convicted on seven counts, including wire fraud, securities fraud, commodities fraud, and money laundering conspiracy. That is a criminal finding, not merely a regulator's accusation.

Another part of his public identity was effective altruism, a movement that asks donors to compare interventions using evidence and expected impact. Bankman-Fried spoke about earning money in order to give it away. The FTX Future Fund said it would make grants and investments intended to improve humanity's long-term prospects. The fund's existence and published goals are documented by that site. They do not excuse misconduct, and a philanthropic claim is not evidence that customer funds were protected.

The November 2022 collapse

The immediate crisis unfolded over days, but it exposed relationships built over years. On November 2, 2022, CoinDesk published a report on an Alameda balance sheet that showed a large concentration in FTT and other affiliated or illiquid tokens. The report did not by itself prove a crime. It did raise a practical solvency question: could assets tied to the FTX group be sold at the values assigned to them if creditors wanted cash?

On November 6, Binance chief executive Changpeng Zhao said on X that Binance would sell its remaining FTT holdings. The statement was public and helped intensify concern. Customers then sought withdrawals from FTX. The companies did not meet those requests. On November 8, Binance announced a non-binding letter of intent to acquire FTX.com, subject to due diligence; the next day it said it would not proceed. Both statements remain in Binance's published thread.

On November 11, FTX Trading Ltd., Alameda Research, and affiliated debtors filed for Chapter 11 protection in Delaware. The court's case page identifies the lead case and makes filings available. Bankman-Fried resigned as chief executive, and John J. Ray III became chief executive officer. In his first-day declaration, Ray said he had not seen such a complete failure of corporate controls in his career. That statement was the new CEO's assessment in a sworn filing, not a general finding about every crypto company.

The bankruptcy process also showed why the phrase "proof of reserves" can be incomplete. A snapshot of wallet balances may show some assets, but it may not show all liabilities, related-party loans, legal claims, control over private keys, or whether the assets are encumbered. The issue at FTX was not only whether particular wallets existed. It was whether customer property had been diverted and whether the group could meet customer claims.

Criminal case and civil proceedings

The criminal trial was held in the Southern District of New York. On November 2, 2023, a jury convicted Bankman-Fried on all seven counts submitted to it. The DOJ said the evidence showed that he misappropriated FTX customer deposits, lied to lenders and investors, and directed the use of customer money for Alameda's expenses and investments. Several former senior executives, including Alameda CEO Caroline Ellison, testified after pleading guilty.

On March 28, 2024, the court imposed a 25-year prison sentence and ordered forfeiture. The DOJ's sentencing release states the sentence and describes the verdict. The legal record is more precise than saying FTX "lost money" in a market downturn. A jury found fraud involving customer deposits. That difference matters when comparing an investment loss with a custody failure.

The SEC filed a parallel civil case in December 2022. Its complaint alleged that Bankman-Fried concealed FTX's diversion of customer funds to Alameda, special treatment for Alameda, and exposure to affiliated tokens. Civil complaints state a regulator's claims. Readers should not treat a complaint as a judgment, but it provides a detailed account of the allegations that the SEC chose to bring. The SEC release and linked complaint make that distinction clear.

What the case establishes, and what it does not

The documented lesson is narrow. Blockchain transactions and token markets do not automatically protect users from a company that controls accounts, databases, withdrawal systems, and private keys. FTX's customers had contractual claims against a centralized group in bankruptcy. They did not hold assets in self-custody merely because the deposited assets were crypto.

Self-custody has different risks. A wallet user can lose a seed phrase, approve a malicious transaction, or send funds to the wrong address. It also does not make every token trustworthy. The point is structural: with self-custody, the user controls the signing key; with exchange custody, the user relies on the exchange's controls, disclosures, and solvency. Neither arrangement removes the need to understand the asset and counterparty.

The case also does not prove that all centralized exchanges operate the same way, that all DeFi protocols are safe, or that a token's public ledger settles questions of ownership. Those claims would need their own evidence. It does show why related-party dealings, illiquid affiliated tokens, and opaque custody arrangements require close scrutiny. The bankruptcy docket, criminal verdict, and regulatory filings provide a record for that specific company and period.