Is Starknet Safe?
Risk Grade: C+ (41/100)
Starknet is rated as elevated risk — multiple novel mechanisms and notable interaction risks.
Moderate risk — advanced cryptography protects against fraud, but repeated outages and a single-operator sequencer undermine the security promises
An Ethereum Layer 2 that uses zero-knowledge STARK proofs for security and a custom programming language called Cairo. It holds $716M in deposits with $287M in funding. Its C grade reflects repeated sequencer outages, a non-standard codebase with limited security auditors, and a single company controlling transaction processing.
TVL
$234M
Mechanisms
9
Interactions
6
Value Grade
C
Key Risks for Starknet Users
The sequencer has gone down multiple times (September 2025, January 2026). During outages, you cannot trade, manage loans, or withdraw to Ethereum. If you have a leveraged position, you cannot save it
Cairo is a custom language that very few security auditors know how to review. Bugs that would be caught quickly in Ethereum's Solidity code could go undetected for months on Starknet
One company (StarkWare) runs the sequencer. There is no backup. If they go offline, censor transactions, or make an error, all $716M in user funds are affected
Top Risk Factors
- •Repeated sequencer outages (Sep 2025, Jan 2026) expose fragile liveness with 18 minutes of reverted blocks
- •Cairo VM is a non-EVM execution environment requiring entirely new tooling and audit expertise
- •Centralized sequencer with no permissionless fallback creates single point of failure for transaction inclusion
How Starknet Compares to Peers
Starknet ranks #25 of 37 L2 protocols (below-median — riskier than average). At a risk score of 41/100, it's 5 points riskier than the sector average of 36/100.
Adjacent peers: Aztec Network (C+, 40/100) is ranked just safer, and Ink Chain (C+, 42/100) is ranked just riskier.
See the full L2 sector leaderboard or the Starknet vs Ink Chain comparison.
Common Questions about Starknet
Plain-English answers based on Starknet's scores across Hindenrank's 8 risk dimensions. The highest-scoring (riskiest) dimension is Vitality Risk (8/10).
Has Starknet ever been hacked or exploited?
Starknet has had some operational issues or moderate incidents in its history. The track record dimension scored 7/15 — not catastrophic, but enough to flag. Look at the specific events and whether they were addressed by the team before drawing conclusions.
How much money is at stake in Starknet?
Starknet currently holds more than $234M 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 Starknet?
Hindenrank has identified specific collapse scenarios for Starknet. The most prominent: "Sequencer-Prover Cascading Outage". The trigger condition is Centralized sequencer experiences extended outage exceeding 4 hours due to external RPC dependency failure (as in January 2026 incident), halting both transaction processing and STARK proof generation. 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 Starknet regulated or insured?
Starknet has low regulatory exposure on Hindenrank's framework (2/10). 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 Starknet?
Hindenrank's retail-focused risk audit flagged: The sequencer has gone down multiple times (September 2025, January 2026). During outages, you cannot trade, manage loans, or withdraw to Ethereum. If you have a leveraged position, you cannot save it Cairo is a custom language that very few security auditors know how to review. Bugs that would be caught quickly in Ethereum's Solidity code could go undetected for months on Starknet One company (StarkWare) runs the sequencer. There is no backup. If they go offline, censor transactions, or make an error, all $716M in user funds are affected
Should beginners deposit into Starknet?
Starknet's C+ grade puts it in the elevated-risk band. This is not a beginner-friendly protocol. Anyone depositing here should treat the position as speculative and avoid concentrating significant savings in it.
How does Starknet compare to safer L2 alternatives?
Starknet is one protocol in Hindenrank's L2 coverage. The safest L2 protocols on the leaderboard tend to share three traits: a long incident-free track record, conservative mechanism design, and high-quality public documentation. Compare Starknet against the full L2 ranking before committing capital.
For the full 8-dimension score breakdown, the radar chart, and dependency graph, see the Starknet risk report.
Read the Full Starknet 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.
View Full Report →Get risk alerts before it's too late
Weekly grade changes, downgrade alerts, and new protocol risk findings. Free.