Ark Invest: About one-third of Bitcoin supply still faces potential threats from quantum computing

By: rootdata|2026/03/12 22:42:00

According to a report by Cointelegraph, Ark Invest and Unchained jointly released a report stating that although most of the btc-42">Bitcoin supply is secure against breakthroughs in quantum computing, approximately 34.6% of Bitcoin still faces potential risks.

The threatened amounts include about 5 million BTC (25% of the total supply) that are transferable due to address reuse, around 1.7 million BTC (8.6%) stored in early P2PK addresses, and about 200,000 BTC (approximately 1%) affected by the P2TR address type.

If quantum computers can break Bitcoin's elliptic curve cryptography (ECC), these funds may face the risk of theft, but this stage is expected to take years to achieve. Ark Invest believes that this is a "long-term risk," and therefore the Bitcoin community has ample time to research and implement quantum protection measures.

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