# Sky (SKY) Quantum Readiness Report

> Sky has a QRI score of 1/100 and is assessed at Stage 0 (Unassessed / No Evidence) with medium evidence confidence.

Evaluation date: 2026-06-05. Review status: draft. Evaluated scope: Sky Protocol governance token (SKY), USDS stablecoin, governance contracts, oracle feeds, and cross-chain bridge dependencies on Ethereum mainnet.

Sky (SKY), formerly MakerDAO, is a DeFi governance protocol on Ethereum with approximately $7.9 billion in stablecoin liabilities (USDS). The protocol has performed zero quantum readiness work: no public cryptographic inventory, no quantum threat model, no post-quantum roadmap, no prototype or testnet, and no production PQC or hybrid-PQC protection. All spend authorization, governance voting, oracle feeds, admin keys, multi-sigs, and bridge dependencies (Skylink/LayerZero, Unichain, Optimism native bridges) rely entirely on classical ECDSA/BLS cryptography inherited from Ethereum L1. The MKR-to-SKY rebrand was a tokenomics migration, not a cryptographic one. Two classical smart-contract audits exist (ChainSecurity, Cantina) but address zero quantum scope. The Eternax industry report (April 2026) explicitly confirms Sky has no disclosed post-quantum migration roadmap. The protocol scores 1.0/100 (Stage 0), reflecting that quantum risk has not been assessed or acknowledged by the project, and no mitigation work exists.

## Core resources

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



## Evidence sources

- [Evidence source 1](<https://sky.money/>): Public source cited by the Sky QRI assessment.
- [Evidence source 2](<https://makerdao.com/>): Public source cited by the Sky QRI assessment.
- [Evidence source 3](<https://github.com/makerdao/sky>): Public source cited by the Sky QRI assessment.
- [Evidence source 4](<https://eternax.ai>): Public source cited by the Sky QRI assessment.
- [Evidence source 5](<https://ethereum.org/roadmap/future-proofing/quantum-resistance/>): Public source cited by the Sky QRI assessment.
- [Evidence source 6](<https://vote.sky.money/>): Public source cited by the Sky QRI assessment.
- [Evidence source 7](<https://thedefiant.io>): Public source cited by the Sky QRI assessment.
- [Evidence source 8](<https://metamask.io/price/usds>): Public source cited by the Sky QRI assessment.
- [Evidence source 9](<https://blockeden.xyz>): Public source cited by the Sky QRI assessment.
- [Evidence source 10](<https://forum.sky.money/>): Public source cited by the Sky QRI assessment.
- [Evidence source 11](<https://www.chainsecurity.com/security-audit/makerdao-sky-smart-contracts>): Public source cited by the Sky QRI assessment.
- [Evidence source 12](<https://cantina.xyz/portfolio/5afcb016-c1e8-4e42-8245-87857f8e1e1a>): Public source cited by the Sky QRI assessment.