Quantum-safe Bitcoin designs now exist in practice. BTQ’s testnet shows that post-quantum cryptography can operate in a ...

1.1 million BTC remain in early-format addresses (e.g. P2PK), potentially vulnerable to future quantum attacks. Roughly 25% of Bitcoin’s supply is in addresses with exposed public keys, raising ...

A Satoshi-era Bitcoin whale moved 909 BTC after 13 years, sparking sell fears, security upgrades, and fresh quantum risk debate.

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