Is Monero Safe?
Risk Grade: C+ (40/100)
Monero is rated as elevated risk — multiple novel mechanisms and notable interaction risks.
Moderate risk — the Qubic mining pool's April 2026 exit removed the active 51% attack threat, and Ring Signature v3 deployment and FCMP++ audit progress indicate strong development momentum. Ongoing exchange delistings and the structural hashrate concentration vulnerability on CPU-minable RandomX offset these positives.
Monero is the leading privacy-focused cryptocurrency, using mandatory ring signatures, stealth addresses, and RingCT to make all transactions private by default. With a market cap of approximately $7.6 billion, XMR ranks among the top 20 cryptocurrencies. Its C+ grade reflects the 2025 51% attacks — which the Qubic mining pool executed but has since exited as of April 2026 — alongside 73 exchange delistings due to regulatory pressure on privacy coins. These risks are balanced by 10+ years of operation, a fair-launch distribution, active development momentum (Ring Signature v3 deployed March 2026, FCMP++ beta stressnet live with audit in progress), and a tail emission model providing permanent mining incentives.
TVL
—
Mechanisms
6
Interactions
5
Value Grade
B-
Key Risks for Monero Users
In August-September 2025, Qubic's mining pool captured over 51% of Monero's RandomX hashrate through dual-mining incentives, executing chain reorganizations of 6 and 18 blocks. Kraken halted XMR deposits during the incidents. Qubic exited Monero mining on April 1, 2026, transitioning to Dogecoin, which removes the immediate threat actor. However, the CPU-friendly RandomX algorithm remains theoretically capturable by any future dual-mining scheme offering sufficient secondary economic incentives.
Monero faced 73 exchange delistings in 2025, including Binance (globally) and Kraken (in parts of Europe). Mandatory privacy features conflict directly with anti-money laundering regulations. Liquidity is increasingly dependent on atomic swaps and decentralized exchanges, which offer lower volume and wider spreads.
All Monero transactions are mandatory private — there is no transparent mode. This means the total circulating supply cannot be independently verified from the blockchain. Supply integrity depends entirely on the mathematical soundness of ring signatures and RingCT. A cryptographic flaw could allow undetectable inflation.
The tail emission of 0.6 XMR per block provides a permanent security budget, but at current prices the total annual miner revenue may be insufficient to prevent hashrate concentration, as the 2025 attacks demonstrated.
Top Risk Factors
- •In August-September 2025, the Qubic mining pool gained >51% of Monero's RandomX hashrate through its 'useful Proof-of-Work' dual-mining incentive, executing 6-block and 18-block reorganizations. Qubic exited Monero mining on April 1, 2026 following its transition to Dogecoin, removing the immediate threat. However, the underlying vulnerability persists: any future dual-mining scheme offering sufficient secondary rewards could repeat the attack on Monero's CPU-friendly RandomX algorithm.
- •Monero faced 73 exchange delistings in 2025, including restrictions from Binance and Kraken across parts of Europe, severely fragmenting centralized exchange liquidity. Mandatory privacy features make Monero a primary target for regulatory action. THORChain mainnet integration (targeted May-June 2026) and atomic swaps provide growing decentralized access alternatives.
- •Mandatory privacy (ring signatures, stealth addresses, RingCT) means all transactions are private by default, making supply auditability dependent on the cryptographic soundness of the privacy primitives. Unlike Zcash's opt-in privacy, there is no transparent fallback to verify total supply.
- •FCMP++ (Full-Chain Membership Proofs), which will replace ring signatures with ZK proofs and expand the anonymity set from 16 to 150M+ outputs, is in beta stressnet phase with a Trail of Bits audit scheduled May 11-22, 2026. Until FCMP++ deploys to mainnet (targeted mid-2026), the existing ring signature privacy model remains in production.
How Monero Compares to Peers
Monero ranks #41 of 56 L1 protocols (below-median — riskier than average). At a risk score of 40/100, it's 5 points riskier than the sector average of 35/100.
Adjacent peers: Solana (C+, 39/100) is ranked just safer, and BNB Chain (C+, 40/100) is ranked just riskier.
See the full L1 sector leaderboard or the Monero vs BNB Chain comparison.
Common Questions about Monero
Plain-English answers based on Monero's scores across Hindenrank's 8 risk dimensions. The highest-scoring (riskiest) dimension is Scale Exposure (9/10).
Has Monero ever been hacked or exploited?
Monero has had some operational issues or moderate incidents in its history. The track record dimension scored 8/15 — 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 Monero?
Monero currently holds an undisclosed amount of user capital. Smaller TVL means individual depositors carry a larger share of any loss event, and it can be harder to exit a position quickly during stress.
What's the worst-case scenario for Monero?
Hindenrank has identified specific collapse scenarios for Monero. The most prominent: "Repeated Hashrate Capture Enabling Systematic Double-Spend". The trigger condition is A mining pool or dual-mining scheme captures >51% of RandomX hashrate for periods exceeding 24 hours, enabling reorganizations deeper than the 10-block safety threshold.. 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 Monero regulated or insured?
Monero faces material regulatory exposure (7/10 on this dimension). This may stem from counterparty concentration, jurisdiction risk, or specific products attracting enforcement attention. Users in regulated jurisdictions should consider whether they are comfortable with this profile before depositing. 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 Monero?
Hindenrank's retail-focused risk audit flagged: In August-September 2025, Qubic's mining pool captured over 51% of Monero's RandomX hashrate through dual-mining incentives, executing chain reorganizations of 6 and 18 blocks. Kraken halted XMR deposits during the incidents. Qubic exited Monero mining on April 1, 2026, transitioning to Dogecoin, which removes the immediate threat actor. However, the CPU-friendly RandomX algorithm remains theoretically capturable by any future dual-mining scheme offering sufficient secondary economic incentives. Monero faced 73 exchange delistings in 2025, including Binance (globally) and Kraken (in parts of Europe). Mandatory privacy features conflict directly with anti-money laundering regulations. Liquidity is increasingly dependent on atomic swaps and decentralized exchanges, which offer lower volume and wider spreads. All Monero transactions are mandatory private — there is no transparent mode. This means the total circulating supply cannot be independently verified from the blockchain. Supply integrity depends entirely on the mathematical soundness of ring signatures and RingCT. A cryptographic flaw could allow undetectable inflation.
Should beginners deposit into Monero?
Monero'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 Monero compare to safer L1 alternatives?
Monero is one protocol in Hindenrank's L1 coverage. The safest L1 protocols on the leaderboard tend to share three traits: a long incident-free track record, conservative mechanism design, and high-quality public documentation. Compare Monero against the full L1 ranking before committing capital.
For the full 8-dimension score breakdown, the radar chart, and dependency graph, see the Monero risk report.
Read the Full Monero Risk Report
This protocol has 2 collapse scenarios. 1 high-severity interaction risks identified. See the full mechanism classification, interaction matrix, and deep-dive recommendations.
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