Bitcoin quantum threat: Which wallets face the most risk?

Fireblocks’ research chief has identified exposed public keys as the main factor in Bitcoin’s future quantum risk, citing public estimates that roughly 6.7 million to 7 million BTC sit behind keys already visible onchain. Older Bitcoin outputs and reused addresses can leave funds behind public keys that are already exposed. Fireblocks recommends fresh deposit and change addresses, with continuous tracking of exposed balances. Bitcoin’s BIP 360 proposal reduces long-term key exposure but does not provide complete quantum protection. Fireblocks has cut Ethereum post-quantum signature verification from 8.09 million to 1.23 million gas.

Source: crypto.news