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Coinbase prepares for post-quantum future with $15 million funding, 7 million BTC at risk from quantum attacks, and a new Bitcoin Security Consortium to
Coinbase is building a post-quantum custody system to protect its users' assets from potential quantum computer attacks, with a threat level that could affect approximately 7 million BTC, or about one-third of the total supply [3]. The company is taking proactive measures to address the risk, as a sufficiently powerful quantum computer could theoretically break Bitcoin's current cryptography, exposing funds.
| At a glance | |
|---|---|
| Price | Not specified |
| 24h % move | Not specified |
| Key level | 7 million BTC at risk |
| Catalyst | Quantum computer threat |
The Bitcoin Security Consortium, founded by nine companies including Coinbase, BlackRock, and Fidelity Digital Assets, will provide $15 million in funding over three years to support Bitcoin security research, including post-quantum cryptography [2]. This initiative aims to address the potential threat of quantum computers to Bitcoin's security, as experts warn that proactive measures are essential to safeguard the ecosystem before "cryptographically relevant" quantum systems emerge. The consortium will not push for specific changes to Bitcoin's code or speak on behalf of its decentralized developer community.
According to Coinbase's independent Quantum Advisory Council, approximately 1.7 million BTC reside in older Pay-to-Public-Key (P2PK) addresses, where public keys have been openly visible since the network's early days [3]. When combined with address reuse across other address types, the total quantum-vulnerable Bitcoin climbs to roughly 7 million. This exposure creates a dual challenge for the Bitcoin ecosystem: technical migration to post-quantum cryptography and difficult governance decisions about "abandoned" coins.
The real significance of Coinbase's post-quantum custody system and the Bitcoin Security Consortium's funding initiative lies in their proactive approach to addressing the potential threat of quantum computers to Bitcoin's security. As the Bitcoin ecosystem continues to evolve, it is crucial to monitor the development of post-quantum cryptography and its potential impact on the cryptocurrency's price and security.
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AI-assisted synthesis by the TrendWatcher Editorial Desk · sourced from 3 outlets · Jul 23, 2026 · How we report
Coinbase has formed an Independent Advisory Board on Quantum Computing and Blockchain and plans to implement a post-quantum signing pipeline that can provide quantum-safe custody within a year.
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