# LEO Token (LEO) Quantum Readiness Report

> LEO Token has a QRI score of 3/100 and is assessed at Stage 0 (Unassessed / No Evidence) with medium evidence confidence.

Evaluation date: 2026-06-05. Review status: draft. Evaluated scope: Standard ERC-20 exchange utility token with dual-chain issuance on Ethereum and Vaulta, token-specific admin keys, and centralized Bitfinex bridge dependency. Evaluated under Token Inheritance rule (QRI §7.2)..

LEO Token scores 3/100 (Stage 0: Unassessed / No Evidence). LEO is a standard ERC-20 utility token with dual issuance on Ethereum and Vaulta (formerly EOS), inheriting all quantum vulnerabilities of both classical ECC-based host chains. The project has published no cryptographic inventory, no quantum threat model, no risk assessment, no migration roadmap, and no PQ prototype or testnet. All production spend authorization, admin key control, and cross-chain bridge paths remain entirely ECC-dependent. The only positive credit (3 points in Algorithm & Implementation Assurance) reflects the open-source, verified contract code on Etherscan — a baseline transparency property that does not indicate any quantum readiness. Bitfinex has published general educational content about quantum computing risks but has not applied this to LEO specifically. The fully diluted valuation across both chains represents material long-exposure quantum-vulnerable value with no migration, freeze, or recovery path. Token admin keys with mint/burn/upgrade authority introduce an additional quantum-critical attack surface beyond standard holder risk. The QRI Score is capped at 5 by Stage 0 (no quantum work performed) and further constrained by the Factor Score of 3.00.

## Core resources

- [LEO Token QRI report](https://qrindex.org/projects/leo-token/): Human-readable assessment with score, stage, evidence, blockers, risks, and assurance notes.
- [LEO Token structured report data](https://qrindex.org/projects/leo-token/report.json): Complete report as JSON for deterministic machine processing.
- [QRI methodology](https://qrindex.org/methodology/): Scoring model, evidence handling, readiness stages, confidence, assurance, and report status.
- [All QRI project reports](https://qrindex.org/llms.txt): Score-ranked index of every published project assessment.
- [LEO Token official website](https://www.bitfinex.com/): Project-maintained website.



## Evidence sources

- [Evidence source 1](<https://www.bitfinex.com/wp-2019-05.pdf>): Public source cited by the LEO Token QRI assessment.
- [Evidence source 2](<https://www.bitfinex.com/wp-content/uploads/2022/02/LEO-Whitepaper.pdf>): Public source cited by the LEO Token QRI assessment.
- [Evidence source 3](<https://support.bitfinex.com/hc/en-us/articles/360023342674-Unus-Sed-LEO-LEO>): Public source cited by the LEO Token QRI assessment.
- [Evidence source 4](<https://etherscan.io/token/0x2af5d2ad76741191d15dfe7bf6ac92d4bd912ca3>): Public source cited by the LEO Token QRI assessment.
- [Evidence source 5](<https://github.com/CallistoSecurity/Smart-contract-audits/blob/master/reports/LEO.md>): Public source cited by the LEO Token QRI assessment.
- [Evidence source 6](<https://blog.bitfinex.com/education/how-can-digital-assets-defend-against-quantum-computing/>): Public source cited by the LEO Token QRI assessment.
- [Evidence source 7](<https://etherscan.io/address/0x2af5d2ad76741191d15dfe7bf6ac92d4bd912ca3#code>): Public source cited by the LEO Token QRI assessment.