DeFi protocol (you keep your wallet, funds sit in a smart contract)
MapleB4/5· Medium risk
Facts last reviewed 24 Sept 2026
Unsecured/secured lending to institutions (syrupUSDC/USDT). In 2022 borrower Orthogonal Trading defaulted on USD 36 million in an old pool, and lenders recovered only part.
Compare a move (switching cost) →History: published and paid rates, incidents, legal status →
Why this tier
- Meets: Operating since 2021-05 (5 years)
- Meets: Audited by 7 firms: Trail of Bits, Spearbit, Three Sigma, 0xMacro, Sherlock, Dedaub, Sigma Prime
- Meets: Bug bounty programme (Immunefi, up to $500k)
- Meets: Large TVL: $2.8B
- Falls short: Uncovered losses in the last 5 years: Orthogonal Trading defaulted on USD 36 million after the FTX collapse (2022-12)
- Note: Risk of the asset itself: syrupUSDC/USDT carry off-chain credit risk from lending to institutions: loans are overcollateralised but there is no first-loss protection layer; withdrawals go through a queue.
Tier history
- 29 Sept 2026B· Medium riskMedium risk
USDT
USDC