The debate between DeFi and CeFi has shifted considerably since 2022. Several large centralised platforms collapsed, dragging user funds with them. Meanwhile, high-profile DeFi protocol exploits have continued β more than $1.8 billion was lost to DeFi hacks in 2025 alone. Neither side has a clean record.
What matters is understanding the specific risks each model carries, so you can make an informed decision about where to keep your crypto.
What CeFi means in practice
Centralised finance (CeFi) refers to regulated or semi-regulated businesses that custody your crypto on your behalf and offer services like savings accounts, loans, and trading. You create an account, complete KYC, deposit funds, and the platform manages everything on the backend.
Examples include regulated crypto banks, licensed lending platforms, and exchanges that offer yield products.
Key characteristics:
- You trust the company with your funds (counterparty risk)
- KYC/AML verification required
- Subject to regulatory oversight (in some jurisdictions)
- Customer support and dispute resolution available
- Interest typically paid in fiat-equivalent or crypto
What DeFi means in practice
Decentralised finance (DeFi) refers to financial protocols built on public blockchains (primarily Ethereum) that operate via smart contracts β code that executes automatically without a central operator.
You interact with DeFi by connecting a self-custody wallet directly to the protocol. There is no company, no KYC, and no intermediary.
Key characteristics:
- You retain custody of your funds (no counterparty risk from a company)
- Smart contract risk replaces counterparty risk
- No KYC required in most protocols
- No customer support β code is law
- Yields fluctuate based on protocol demand
The security comparison
CeFi risks:
- Company insolvency (as seen with Celsius, BlockFi, Voyager)
- Internal fraud or mismanagement
- Regulatory action freezing assets
- Hacks of centralised infrastructure
DeFi risks:
- Smart contract vulnerabilities (code bugs that allow funds to be drained)
- Oracle manipulation (price feeds exploited to game protocols)
- Governance attacks (token-holder votes that drain treasuries)
- Rug pulls (developers abandoning or draining projects)
- No recourse if something goes wrong
In CeFi, the risk lives in the company. In DeFi, the risk lives in the code.
Yield: where does it actually come from?
CeFi yield comes from the platform lending your crypto to institutional borrowers, running trading desks, or offering staking services. The platform takes a spread and passes the remainder to you. Rates are relatively stable.
DeFi yield comes from protocol incentives, lending demand from other users, and sometimes token emissions (newly minted tokens paid as rewards). High DeFi yields often include a token component that may depreciate rapidly. Once token incentives end, yields frequently collapse.
A 20% APY on a DeFi protocol deserves more scepticism than a 6% APY on a regulated CeFi account β even though the CeFi number looks less exciting.
Regulatory protection: a significant CeFi advantage
Regulated CeFi platforms are subject to:
- Mandatory asset segregation (your funds held separately from company funds)
- Capital adequacy requirements
- External audits
- Regulatory oversight with enforcement powers
This does not make CeFi risk-free β regulation did not save Celsius users β but it does provide a structural layer of protection that DeFi cannot offer.
DeFi is inherently global and permissionless. No regulator has jurisdiction over a smart contract on a public blockchain. This is a feature for some users and a risk for others.
Which is right for you?
Choose CeFi if:
- You want regulatory protection and formal oversight
- You prefer stable, predictable yields
- You are new to crypto and want a familiar account-based interface
- You hold a large amount and need meaningful security guarantees
- You want to use your savings as collateral for loans or spend via a card
Choose DeFi if:
- You are comfortable managing your own wallet and private keys
- You want to experiment with emerging protocols
- You hold a small amount you are willing to put at higher risk for potentially higher returns
- Privacy and permissionless access matter to you
Most experienced holders use both β a CeFi account for their core savings and collateral, DeFi for a portion of their portfolio where they are willing to accept higher risk.
What a0bank offers
a0bank's savings accounts operate on a fully regulated CeFi model: seven licences (FCA, MAS, ASIC, CySEC, DFSA, FSA, MiFID II), institutional-grade cold storage custody, and 6.25% APR on ten supported assets including Bitcoin, Ethereum, Solana, and USDT.
Your deposits earn consistent yield without smart contract exposure, and can be used as collateral for an instant cash loan or spent with the a0bank Visa debit card β without selling your crypto.
Open an a0bank account and start earning 6.25% on your crypto with full regulatory protection today.