DeFi Lending Protocol
A smart-contract platform that allows crypto holders to earn interest by lending assets or to borrow against crypto collateral, with specific fraud and exploit risks.
Also known as: on-chain lending, DeFi borrow-lend
Last reviewed: 10 June 2026
DeFi lending protocols allow users to deposit cryptocurrency to earn yield from borrowers, or to borrow against deposited collateral without credit checks. Interest rates are set algorithmically. Legitimate protocols like Aave and Compound have long track records, but the model has been widely cloned by fraudulent projects.
Risk factors include: smart-contract exploits that drain deposited funds; economic attacks that exploit flawed liquidation mechanics; rug pulls by teams retaining admin keys to withdraw reserves; and fake lending protocols that accept deposits but block withdrawals. Specific scam patterns use lending protocols as props in pig-butchering scenarios, showing victims impressive yield on deposits they can never actually recover.
Consumers should verify audits, examine on-chain reserves, understand the liquidation model before borrowing, and avoid any platform that cannot be independently confirmed as operating.