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Bitcoin's quantum risk linked to exposed public keys; gradual wallet changes advised to reduce vulnerability.

Market News
09 Oct 2026
Crypto news
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Neutral
Bitcoin's quantum risk linked to exposed public keys; gradual wallet changes advised to reduce vulnerability.

Fireblocks research highlights that Bitcoin's future quantum risk mainly arises from exposed public keys, with an estimated 6.7 to 7 million BTC behind keys visible onchain. Older Bitcoin outputs and reused addresses increase exposure, as public keys become visible after spending. Fireblocks recommends continuous management by using fresh deposit and change addresses and tracking exposed balances to gradually reduce risk. While Bitcoin's BIP 360 proposal aims to reduce long-term key exposure, it does not fully solve quantum threats, and a quantum-resistant transaction method remains necessary. Ethereum's post-quantum signature verification costs have been significantly reduced by Fireblocks, but wallet and protocol changes are still needed for full quantum security.

Bitcoin quantum threat is the subject, with Pluang market data providing context as of Oct 10, 2026 01:51 WIB. Among 50 major cryptocurrencies on Pluang, 43 rose and 6 fell today. Notable movers include ENJ (Enjin Coin) at Rp567 with a 9.02% increase and a typical hold time of 105 days, ZIL (Zilliqa) at Rp62 up 8.20% with a 133-day hold, and EOS (EOS.IO) at Rp12,649 rising 8.13%.

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