Crypto Lending Platforms: CeFi vs. DeFi, and What Went Wrong in 2022

Two very different things called “crypto lending”

“Crypto lending” gets used as if it’s one product, but it describes two fundamentally different arrangements. A centralized (CeFi) lending platform is a company: you deposit your crypto with them, they take custody of it, and they lend it out or deploy it in various strategies to generate a return, paying you a portion as interest. You’re trusting that company the same way you’d trust a bank, except without a bank’s regulatory oversight, capital requirements, or deposit insurance standing behind it.

A DeFi lending protocol, like Aave, works differently. There’s no company taking custody of your funds; instead, your crypto sits in a smart contract that anyone can inspect, interest rates are set algorithmically based on supply and demand, and loans are typically over-collateralized rather than based on trust in a borrower’s creditworthiness. What Aave actually is and how it works is covered in What Is Aave; this page assumes that background and focuses on the comparison.

The distinction matters enormously, and 2022 provided a real, expensive lesson in why.

What “yield” actually meant at a CeFi lender

When a centralized platform advertised 8% or 12% annual yield on a stablecoin deposit, that return had to come from somewhere. In practice, it came from the platform lending your deposited crypto to institutional borrowers, trading firms, and hedge funds, often on an unsecured or under-collateralized basis, or deploying it into higher-risk strategies to generate enough return to cover what they’d promised you plus their own margin. This is, structurally, what a bank does with deposits. The difference is that a bank operates under capital requirements, regular audits, and deposit insurance specifically because history has shown that an unregulated version of this business model is prone to catastrophic failure when a large borrower defaults or asset prices fall sharply. A CeFi lending platform was effectively running an unregulated bank, and depositors frequently didn’t understand that’s what they’d signed up for.

The critical problem: as a depositor, you generally couldn’t see exactly who the platform had lent your funds to, on what terms, or how exposed the platform was to any single borrower or strategy going wrong. You were extending trust without the information needed to evaluate whether that trust was warranted.

What actually happened in 2022

Three of the largest CeFi lenders collapsed within months of each other in 2022, and the sequence is worth knowing precisely, since it’s one of the clearest case studies in crypto history of counterparty risk materializing.

Celsius Network froze customer withdrawals in June 2022 and filed for bankruptcy the following month, after it became unable to meet withdrawal demand amid a broader market downturn and losses tied to risky strategies and lending exposures. In December 2024, founder and former CEO Alex Mashinsky pleaded guilty to two counts of fraud, admitting he had misled customers about the regulatory status of Celsius’s “Earn” program and had secretly sold his own holdings of Celsius’s in-house token while publicly promoting it, netting him tens of millions of dollars before the company collapsed. In May 2025, he was sentenced to 12 years in prison.

Voyager Digital ran into trouble when Three Arrows Capital, a crypto hedge fund, defaulted on several hundred million dollars it owed Voyager. Voyager restricted withdrawals in late June 2022, suspended all trading and withdrawals days later, and filed for Chapter 11 bankruptcy in July 2022.

BlockFi had significant exposure to FTX and its trading arm Alameda Research. When FTX collapsed in November 2022, BlockFi limited customer withdrawals within days and filed for Chapter 11 bankruptcy by the end of that month. It later emerged from bankruptcy and began returning funds to customers, but recoveries took well over a year and were not guaranteed to be full.

In every case, depositors who believed they held a savings-account-like product discovered they actually held an unsecured claim against a company, in a bankruptcy court, competing with every other creditor.

The honest lesson

The core lesson isn’t “CeFi lending is always a scam” or “DeFi is always safe.” Plenty of CeFi platforms operated (and still operate) without incident, and DeFi protocols carry their own real risks, covered in How to Evaluate a DeFi Protocol Before Depositing Funds. The honest, transferable lesson is narrower and more useful: if you can’t see exactly what’s backing an advertised yield, who your funds are actually lent to, and what happens if those borrowers default, you’re taking on undisclosed counterparty risk, whatever the platform calls itself. A DeFi protocol doesn’t eliminate risk, but a legitimate one at least makes that information inspectable on-chain rather than asking you to trust a company’s word for it. The custody question underneath all of this, who actually controls your funds while they’re generating that yield, is covered more generally in Wallets and Custody.

Advertised yield that’s meaningfully higher than what comparable, transparent products pay is also a specific, checkable prompt: ask where that extra return is actually coming from, rather than treating a high number as simply good luck.

Frequently asked questions

Are all CeFi crypto lending platforms unsafe? No, and it would be inaccurate to say so. Many operated without incident, and some CeFi platforms are more conservative and transparent about their practices than others. The point isn’t that centralized custody is inherently fraudulent, it’s that depositors in 2022 frequently couldn’t evaluate the actual risk they were taking, and several platforms turned out to be taking far more risk than their marketing suggested.

Did any depositors get their money back? Some did, partially and after long delays. Bankruptcy proceedings for Celsius, Voyager, and BlockFi each resulted in creditors (including depositors) eventually receiving some recovery, often a mix of cash and crypto, sometimes years after the initial freeze and often worth less than what was originally deposited given how crypto prices moved in the interim.

Is DeFi lending guaranteed to be safer than CeFi lending? No. DeFi protocols remove custodial and counterparty risk in the CeFi sense, since your funds stay in a smart contract rather than a company’s balance sheet, but they introduce smart-contract risk, and some protocols retain admin controls that create their own centralization risk. The checklist in How to Evaluate a DeFi Protocol Before Depositing Funds is exactly for working through that risk on a protocol-by-protocol basis.

How can I tell if a platform’s yield is coming from something unsustainable? Look for specifics: does the platform disclose who it lends to and under what terms, or does it just advertise a headline rate? Is the rate meaningfully higher than comparable products? Does it rely on its own token rather than an established asset? None of these alone prove a problem, but a platform that can’t or won’t answer where the yield comes from is asking for a level of trust the 2022 collapses showed can be badly misplaced.

Risk