# Hedera (HBAR) Quantum Readiness Report

> Hedera has a QRI score of 15/100 and is assessed at Stage 2 (Mitigation / Development) with medium evidence confidence.

Evaluation date: 2026-06-05. Review status: draft. Evaluated scope: Native asset (HBAR) and core consensus network layers on Hedera mainnet, evaluated as of 2026-06-05. Token-level assets (HTS tokens), wrapped representations (WHBAR), bridged assets, and L2/sidechain deployments are noted as dependencies but not independently scored..

Hedera has published one of the most detailed post-quantum migration roadmaps in the blockchain industry (April 2026), with explicit algorithm selection (FN-DSA/ML-DSA for signatures, ML-KEM for TLS), phased sequencing, and dependency analysis. The hashgraph consensus already uses SHA-384 hashing, providing genuine quantum-resistant state integrity. The account model supports in-place key rotation. However, as of June 2026, all production spend authorization, consensus event signing, and the TSS proof system rely entirely on quantum-vulnerable classical signatures (ECDSA secp256k1, Ed25519, Schnorr, BLS). No PQC code, prototype, or testnet exists. The effective QRI score is capped at 25 by the Readiness & Risk Cap for 'Roadmap/proposal only; no public code, prototype, or testnet,' and the Factor Score of 15.28 reflects the gap between excellent planning and zero production protection. The final QRI Score of 15 places Hedera firmly in Stage 2 (Mitigation / Development).

## Core resources

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



## Evidence sources

- [Evidence source 1](<https://hedera.com/blog/post-quantum-cryptography-and-blockchain/>): Public source cited by the Hedera QRI assessment.
- [Evidence source 2](<https://docs.hedera.com/hedera/core-concepts/keys-and-signatures>): Public source cited by the Hedera QRI assessment.
- [Evidence source 3](<https://docs.hedera.com/hedera/core-concepts/hashgraph-consensus-algorithms>): Public source cited by the Hedera QRI assessment.
- [Evidence source 4](<https://github.com/hiero-ledger/hiero-consensus-node>): Public source cited by the Hedera QRI assessment.
- [Evidence source 5](<https://hashscan.io/>): Public source cited by the Hedera QRI assessment.
- [Evidence source 6](<https://docs.hedera.com/hedera/core-concepts/accounts/keys-and-signatures>): Public source cited by the Hedera QRI assessment.
- [Evidence source 7](<https://github.com/hiero-ledger/hiero-consensus-node/blob/main/hedera-node/docs/exact-weight-tss.md>): Public source cited by the Hedera QRI assessment.
- [Evidence source 8](<https://docs.hedera.com/hedera/core-concepts>): Public source cited by the Hedera QRI assessment.
- [Evidence source 9](<https://hedera.com/learning/how-hedera-works/>): Public source cited by the Hedera QRI assessment.
- [Evidence source 10](<https://docs.hedera.com/hedera/tutorials/more-tutorials/HSM-signing/aws-kms>): Public source cited by the Hedera QRI assessment.
- [Evidence source 11](<https://hedera.com/blog/fp-complete-publishes-results-of-independent-3rd-party-audits-of-hedera-platform-and-new-hedera-token-service/>): Public source cited by the Hedera QRI assessment.
- [Evidence source 12](<https://hedera.com/blog/coq-proof-completed-by-carnegie-mellon-professor-confirms-hashgraph-consensus-algorithm-is-asynchronous-byzantine-fault-tolerant/>): Public source cited by the Hedera QRI assessment.
- [Evidence source 13](<https://hedera.com/wp-content/uploads/2025/12/NCC_Group_HederaHashgraph_E017270_Report_2024-11-20_v1.0.pdf>): Public source cited by the Hedera QRI assessment.