@kazani
Bitcoin researchers propose BIP-361 to freeze quantum vulnerable wallets + phased sunset of legacy signatures
BIP-361 proposes a staged Bitcoin migration away from current legacy signatures toward post-quantum-safe ones. First it would stop sending to quantum-vulnerable addresses, then after a long notice period it would make old ECDSA/Schnorr spends invalid, effectively forcing holders, wallets, exchanges, and custodians to migrate before a deadline
Quantum computing progress could eventually threaten Bitcoin UTXOs with exposed public keys, so the goal is to reduce the attack surface early and give the ecosystem a clear migration timeline instead of waiting for an emergency
https://github.com/bitcoin/bips/blob/master/bip-0361.mediawiki