Is Stellar Safe?
Risk Grade: B (21/100)
Stellar is rated as moderate risk — some novel mechanisms, generally well-understood.
Moderate risk — 10+ years of clean core operation and best-in-class institutional partnerships for payments, balanced by SDF's concentrated token holdings and the emerging Soroban smart contract attack surface.
Stellar is a Layer 1 blockchain focused on cross-border payments and asset tokenization, operating since 2015 using the Stellar Consensus Protocol (SCP) — a Federated Byzantine Agreement model. With major institutional partnerships including MoneyGram (170+ country cash network), PayPal (PYUSD stablecoin on Stellar), Franklin Templeton (tokenized money market fund), and US Bank (stablecoin testing), Stellar has one of the strongest institutional adoption profiles in crypto. The network's DeFi TVL recently reached an all-time high of $163 million following the launch of Soroban smart contracts in February 2024, expanding capabilities beyond simple payments to lending (Blend) and AMM (Aquarius) protocols. Its B+ grade reflects 10+ years of clean core operation, strong institutional partnerships, and growing DeFi adoption, balanced against the Stellar Development Foundation's concentrated XLM holdings (46% of total supply) and the relatively new Soroban smart contract attack surface.
TVL
$16M
Mechanisms
6
Interactions
5
Value Grade
C
Key Risks for Stellar Users
The Stellar Development Foundation (SDF) holds approximately 23 billion XLM (46% of total supply). While SDF is a non-profit distributing tokens for ecosystem development, this concentration gives one entity significant control over supply dynamics and creates counterparty risk if SDF's priorities change.
Soroban smart contracts launched on mainnet in February 2024, adding programmable DeFi capabilities but also new attack surface. With only 2 years of production, Soroban has less battle-testing than Stellar's core payment functionality, and 70% of TVL is concentrated in just two protocols (Blend and Aquarius).
A critical exploit in 2019 allowed an attacker to mint over 2 billion XLM before detection and patching. While the network has operated cleanly since, the incident demonstrated the possibility of critical consensus-level bugs even in formally specified systems.
Near-zero transaction fees by design mean XLM holders receive minimal economic benefit from network usage. The token's value proposition depends more on SDF ecosystem development and institutional adoption than on direct fee accrual.
Top Risk Factors
- •The Stellar Development Foundation (SDF) holds approximately 23 billion XLM of the 50 billion total supply (46%), creating significant single-entity concentration. While SDF is a non-profit and distributions fund ecosystem development, this level of concentration gives one entity outsized influence over supply dynamics and ecosystem direction.
- •Soroban smart contracts (launched February 2024) are relatively new, with only 2 years of mainnet production. While they expand Stellar's capability beyond payments, the WASM-based contract platform adds new attack surface that has less battle-testing than Stellar's core payment functionality.
- •A critical exploit in 2019 allowed an attacker to mint over 2 billion XLM without detection. The vulnerability was patched and the network has operated cleanly since, but it demonstrated that even well-reviewed consensus implementations can harbor critical bugs.
- •The SCP (Stellar Consensus Protocol) federated trust model relies on validators choosing their own quorum slices. If tier-1 validator diversity narrows or trust graph topology shifts, the network's fault tolerance could degrade below the current 2-organization tolerance (expanding to 4 in 2025).
How Stellar Compares to Peers
Stellar ranks #3 of 56 L1 protocols (top quartile — safer than most). At a risk score of 21/100, it's 14 points safer than the sector average of 35/100.
Adjacent peers: Ethereum (B+, 16/100) is ranked just safer, and Polkadot (B, 21/100) is ranked just riskier.
See the full L1 sector leaderboard or the Stellar vs Polkadot comparison.
Common Questions about Stellar
Plain-English answers based on Stellar's scores across Hindenrank's 8 risk dimensions. The highest-scoring (riskiest) dimension is Vitality Risk (6/10).
Has Stellar ever been hacked or exploited?
Stellar has a fairly clean operational history. The track record dimension scored 3/15, 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 Stellar?
Stellar currently holds roughly $16M in user deposits. 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 Stellar?
Hindenrank has identified specific collapse scenarios for Stellar. The most prominent: "Institutional anchor exits degrade network utility". The trigger condition is One or more major anchors (MoneyGram, PayPal, Franklin Templeton) discontinue Stellar integration due to regulatory changes, competitive alternatives, or strategic pivots, reducing the network's fiat connectivity across key corridors. 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 Stellar regulated or insured?
Stellar 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 Stellar?
Hindenrank's retail-focused risk audit flagged: The Stellar Development Foundation (SDF) holds approximately 23 billion XLM (46% of total supply). While SDF is a non-profit distributing tokens for ecosystem development, this concentration gives one entity significant control over supply dynamics and creates counterparty risk if SDF's priorities change. Soroban smart contracts launched on mainnet in February 2024, adding programmable DeFi capabilities but also new attack surface. With only 2 years of production, Soroban has less battle-testing than Stellar's core payment functionality, and 70% of TVL is concentrated in just two protocols (Blend and Aquarius). A critical exploit in 2019 allowed an attacker to mint over 2 billion XLM before detection and patching. While the network has operated cleanly since, the incident demonstrated the possibility of critical consensus-level bugs even in formally specified systems.
Should beginners deposit into Stellar?
Stellar 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 Stellar compare to safer L1 alternatives?
Stellar 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 Stellar against the full L1 ranking before committing capital.
For the full 8-dimension score breakdown, the radar chart, and dependency graph, see the Stellar risk report.
Read the Full Stellar Risk Report
This protocol has 2 collapse scenarios. See the full mechanism classification, interaction matrix, and deep-dive recommendations.
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