Is Suilend Safe?
Risk Grade: B- (34/100)
Suilend is rated as moderate risk — some novel mechanisms, generally well-understood.
Moderate risk — dominant lending position on Sui, but the chain's thin liquidity means a sharp crash could overwhelm liquidation infrastructure
The largest lending protocol on Sui, where you deposit crypto to earn interest or borrow against it. It holds $630M with $6M in funding and also built SpringSui, a liquid staking system for SUI tokens. Its B- grade reflects rapid growth on a young blockchain where DeFi infrastructure is still maturing.
TVL
$147M
Mechanisms
7
Interactions
5
Value Grade
C+
Key Risks for Suilend Users
If SUI drops 40%+ in a day, mass liquidations could overwhelm the thin on-chain liquidity. Liquidation bots stop bidding when it is unprofitable, bad debt piles up, and depositors cannot withdraw
The sSUI liquid staking token is widely used as collateral. A bug in SpringSui could cause sSUI to lose its peg, triggering cascading liquidations that deepen the depeg in a vicious circle
Suilend depends entirely on the Sui blockchain. The chain is young, the DeFi ecosystem is thin, and oracle coverage for newer Sui tokens is limited. Prices could be stale or manipulated
Top Risk Factors
- •Cascading liquidations during SUI price crashes could generate bad debt across lending pools due to thin on-chain liquidity
- •SpringSui LST (sSUI) depeg risk creates correlated collateral exposure across the Suilend lending ecosystem
- •Sui ecosystem concentration risk — protocol depends on a single L1 chain with limited DeFi infrastructure maturity
How Suilend Compares to Peers
Suilend ranks #35 of 90 Lending protocols (above-median). At a risk score of 34/100, it's 3 points safer than the sector average of 37/100.
Adjacent peers: BEND (B-, 33/100) is ranked just safer, and Aries Markets (B-, 34/100) is ranked just riskier.
See the full Lending sector leaderboard or the Suilend vs Aries Markets comparison.
Common Questions about Suilend
Plain-English answers based on Suilend's scores across Hindenrank's 8 risk dimensions. The highest-scoring (riskiest) dimension is Vitality Risk (6/10).
Has Suilend ever been hacked or exploited?
Suilend has a fairly clean operational history. The track record dimension scored 2/15, indicating minor or no significant incidents on record. A clean track record is a positive signal but it does not guarantee future safety, especially as protocol complexity grows.
How much money is at stake in Suilend?
Suilend currently holds more than $147M in user deposits. A protocol of this size typically has deeper liquidity, more eyes on the code, and more attention from auditors — but it also means a single failure has a much larger blast radius.
What's the worst-case scenario for Suilend?
Hindenrank has identified specific collapse scenarios for Suilend. The most prominent: "Cascading Liquidation Spiral During SUI Crash". The trigger condition is A rapid SUI price decline (>40% in 24h) triggers cascading liquidations across Suilend's lending pools, overwhelming liquidators and generating bad debt. Reading through the full scenario list on the protocol page is the single best way to understand the actual failure modes — generic "smart contract risk" is rarely the thing that takes a protocol down.
Is Suilend regulated or insured?
Suilend has low regulatory exposure on Hindenrank's framework (3/10). The protocol is structured in a way that minimizes counterparty and jurisdiction concentration, though regulatory risk in crypto can change rapidly. No DeFi protocol carries FDIC-style insurance — even with low regulatory risk, depositors are not protected in the way bank customers are.
What are the biggest red flags for Suilend?
Hindenrank's retail-focused risk audit flagged: If SUI drops 40%+ in a day, mass liquidations could overwhelm the thin on-chain liquidity. Liquidation bots stop bidding when it is unprofitable, bad debt piles up, and depositors cannot withdraw The sSUI liquid staking token is widely used as collateral. A bug in SpringSui could cause sSUI to lose its peg, triggering cascading liquidations that deepen the depeg in a vicious circle Suilend depends entirely on the Sui blockchain. The chain is young, the DeFi ecosystem is thin, and oracle coverage for newer Sui tokens is limited. Prices could be stale or manipulated
Should beginners deposit into Suilend?
Suilend is rated B-, which is acceptable for users who understand the protocol's mechanism. Beginners should read the full risk breakdown and only deposit after they can articulate the top three failure modes. If you cannot explain how the protocol works, do not deposit.
How does Suilend compare to safer Lending alternatives?
Suilend is one protocol in Hindenrank's Lending coverage. The safest Lending protocols on the leaderboard tend to share three traits: a long incident-free track record, conservative mechanism design, and high-quality public documentation. Compare Suilend against the full Lending ranking before committing capital.
For the full 8-dimension score breakdown, the radar chart, and dependency graph, see the Suilend risk report.
Read the Full Suilend Risk Report
This protocol has 2 collapse scenarios. 3 high-severity interaction risks identified. See the full mechanism classification, interaction matrix, and deep-dive recommendations.
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