# Shiba Inu (SHIB) Quantum Readiness Report

> Shiba Inu has a QRI score of 0/100 and is assessed at Stage 0 (Unassessed / No Evidence) with very low evidence confidence.

Evaluation date: 2026-06-05. Review status: draft. Evaluated scope: SHIB ERC-20 token on Ethereum mainnet, including Shibarium L2 bridge dependency and ecosystem governance.

Shiba Inu (SHIB) is a standard, immutable ERC-20 token on Ethereum with no custom cryptography, admin keys, or upgrade authority in the token contract. Under QRI Section 7.2 (Token Inheritance), SHIB inherently shares Ethereum L1's quantum-vulnerable ECDSA/secp256k1 security model for spend authorization and state integrity. The Shiba Inu ecosystem extends to Shibarium, a Polygon Edge/Plasma-fork L2 sidechain using classical ECDSA for consensus and bridge validation — both quantum-vulnerable. The Shibarium bridge suffered a major classical exploit in September 2025, underscoring the fragility of its signature-based security. While the ecosystem has acknowledged quantum risk in official publications and announced a Zama FHE partnership (privacy/confidentiality, not spend-authorization replacement), no formal cryptographic inventory, quantum threat model, PQ migration plan, or production PQ protection exists. The project scores 0 on all five QRI categories. Stage 0 cap (5) and Readiness & Risk caps (10 for no cryptographic inventory, 50 for vulnerable two-way bridge, 40 for ECC-only spend authorization) all exceed the Factor Score of 0, yielding a QRI Score of 0. The ecosystem has shown awareness of quantum risk through official publications, but this awareness does not constitute a formal risk assessment and provides no production protection.

## Core resources

- [Shiba Inu QRI report](https://qrindex.org/projects/shiba-inu/): Human-readable assessment with score, stage, evidence, blockers, risks, and assurance notes.
- [Shiba Inu structured report data](https://qrindex.org/projects/shiba-inu/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.
- [Shiba Inu official website](https://www.coingecko.com/en/coins/shiba-inu): Project-maintained website.



## Evidence sources

- [Evidence source 1](<https://docs.shibariumtech.com/shibarium/>): Public source cited by the Shiba Inu QRI assessment.
- [Evidence source 2](<https://blog.shibaswap.com/>): Public source cited by the Shiba Inu QRI assessment.
- [Evidence source 3](<https://magazine.shib.io/>): Public source cited by the Shiba Inu QRI assessment.
- [Evidence source 4](<https://news.shib.io/>): Public source cited by the Shiba Inu QRI assessment.
- [Evidence source 5](<https://etherscan.io/token/0x95ad61b0a150d79219dcf64e1e6cc01f0b64c4ce>): Public source cited by the Shiba Inu QRI assessment.
- [Evidence source 6](<https://etherscan.io/address/0x95ad61b0a150d79219dcf64e1e6cc01f0b64c4ce>): Public source cited by the Shiba Inu QRI assessment.
- [Evidence source 7](<https://l2beat.com/scaling/projects/shibarium>): Public source cited by the Shiba Inu QRI assessment.
- [Evidence source 8](<https://www.ledger.com/coin/wallet/shiba-inu>): Public source cited by the Shiba Inu QRI assessment.
- [Evidence source 9](<https://metamask.io/price/shiba-inu>): Public source cited by the Shiba Inu QRI assessment.