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Core Difference
CeFi (Coinbase, Binance): You deposit assets into a company's custody. The company holds your keys. Smart contracts may run in the background, but you're trusting the company. FTX's collapse was a CeFi failure.
DeFi (Uniswap, Aave): You interact with smart contracts directly. The contract holds your assets. No company can steal or block your funds (if the contracts are correctly written). Your keys, your crypto.
Comparison Table
| Factor | CeFi | DeFi |
|---|---|---|
Custody | Exchange holds your assets | You hold your keys |
Trust model | Trust the company | Trust the code |
KYC required | Yes | No (unless gated) |
Fiat integration | Yes (bank accounts) | Limited (off-ramp needed) |
User experience | Easier | More complex |
Yield | Lower (0.5–3%) | Higher (3–15%+) |
Security risk | Hack/misuse by company | Smart contract exploit |
Regulatory status | Regulated (MSB, etc.) | Unclear/evolving |
Available 24/7 | Often yes | Always yes |
Recovery if error | Company can help | Usually irreversible |
The FTX Lesson (CeFi Risk)
FTX collapsed in November 2022, losing $8B+ in customer funds. The reason: CeFi. FTX held customer assets and commingled them with their trading entity (Alameda Research). "Not your keys, not your coins" became the crypto community's response — pointing to DeFi as the alternative where such custodial misuse is impossible.
The DeFi Risk Side
DeFi has its own risks: $5B+ lost to smart contract exploits. Unlike CeFi where (sometimes) courts can compel recovery, DeFi exploits are usually irreversible. Users must evaluate the smart contract security and auditing quality of every protocol they use.