Bitcoin's Oldest Wallets Face a Bigger Quantum Threat After Google's Willow Advance
Google reported that its Willow quantum chip cut errors about 40-fold when preparing the "magic states" needed for advanced calculations.
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16 stories · 27 May 2025 – 17 Oct 2026
Google reported that its Willow quantum chip cut errors about 40-fold when preparing the "magic states" needed for advanced calculations.
Nine blockchain companies launched the Quantum Alliance on 15 October 2026 to set shared post-quantum security standards for Bitcoin, Ethereum and other networks.
Starknet has opened a seven-day, non-binding vote asking STRK holders whether the Ethereum layer-2 network should explore becoming an independent post-quantum layer-1 blockchain.
Coinbase published recommendations on 13 October 2026 urging Bitcoin to begin a multi-year migration to quantum-resistant signatures.
The Joint Committee of EU financial regulators warned that quantum computing could break blockchain encryption before the technology becomes commercially viable.
The Ethereum Foundation's Protocol cluster set December 2029 as its target for making Ethereum's base layer resistant to quantum computers.
The G7 Cybersecurity Working Group released a report on 3 September 2026 urging governments and organizations to begin moving to post-quantum cryptography now.
StarkWare mined the first quantum-safe Bitcoin transaction on the network's mainnet on 26 August 2026.
The Responsible Fintech Institute and custody provider Safeheron launched a cross-regional pilot testing quantum-resistant wallets and transfers.
Ethereum co-founder Vitalik Buterin published an updated protocol roadmap on 10 August 2026.
Zcash activated its Ironwood upgrade on 28 July 2026, sealing the Orchard shielded pool that held about 3.66 million ZEC, worth roughly $1.7 billion.
Nine institutional Bitcoin firms, including BlackRock, Strategy, and Coinbase, launched the Bitcoin Security Consortium on 23 July 2026.
Binance founder Changpeng Zhao has proposed freezing Satoshi Nakamoto's estimated 1.1 million bitcoin if quantum computers threaten the network's cryptography.
Ethereum co-founder Vitalik Buterin named quantum resistance, scalability and privacy as top priorities in a new "Lean Ethereum" roadmap.
Binance co-founder CZ posted on 31 March 2026 that crypto protocols must migrate to post-quantum algorithms.
A warning from BlackRock and new research from Google highlight how rapidly advancing quantum technology could break Bitcoin’s core security systems.