Quantum Computing Threat to Bitcoin: Taproot Upgrade Exposes Vulnerabilities. ✨
Google researchers reveal that breaking Bitcoin's cryptography may require fewer qubits than thought, putting 6.9 million bitcoin at risk.
Key Findings:
- Quantum Computing Power: 500,000 physical qubits and 1,200-1,450 high-quality qubits needed to break Bitcoin's security
- Real-time Attacks: Quantum computers could hijack in-flight transactions in 9 minutes, beating confirmation 41% of the time
- Taproot Vulnerability: Bitcoin's Taproot upgrade exposes public keys, widening the pool of vulnerable wallets.
Google urges earlier post-quantum migration, as quantum attacks are not yet imminent but the timeline may be shorter than thought.
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