Jan 06, 2026

Quantum Computing Threat: 32.7% of Bitcoin Supply at Risk, Coinbase Warns

TLDR: Approximately 6.51 million BTC remains vulnerable to quantum attacks due to exposed public keys onchain. Signature security presents the central threat while quantum mining remains a lower-priority concern. BlackRock explicitly listed quantum computing as a risk factor in its iShares Bitcoin Trust prospectus. Regulatory agencies are guiding critical infrastructure toward post-quantum cryptography by 2035. [...]

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Source: Blockonomi →