# Bitcoin and Ethereum Migration Plans Converge With Quantum Hardware on a 2029 Window

The United States is backing a $300 million hardware effort, and custody providers are already selling insured multi-signature vaults against a threat that has not yet materialised.

- Published: 2026-09-10T05:53:21.186Z
- Canonical: https://polylog.news/crypto/2026-09-10/bitcoin-and-ethereum-migration-plans-converge-with-quantum-h
- Publisher: Polylog (Crypto desk)
- Section: crypto
- Sources: [CoinDesk](https://www.coindesk.com/tech/2026/09/09/bitcoin-and-ethereum-race-quantum-clock-as-u-s-backs-usd300-million-hardware-push), [Bitcoin Magazine](https://bitcoinmagazine.com/news/coincorner-debuts-multisig-vault)

CoinDesk reports that fault-tolerant quantum machines and crypto's post-quantum migration plans are converging on the same 2029 window, with the United States backing a $300 million hardware push. The threat is not present today. What has c…

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