# Smashed Quantum Computing Record Raises Stakes for Bitcoin Security

- Source: Bitcoin News
- Published: 2026-10-19T21:55:40+00:00
- Category: Markets
- Original: https://news.bitcoin.com/technology/smashed-quantum-computing-record-raises-stakes-bitcoin-security/
- Canonical: https://groundlevelnews.com/story/smashed-quantum-computing-record-raises-stakes-for-bitcoin-security-6745f4/

Quantum computing firm Quantinuum has announced a major breakthrough in error correction, achieving a record 99.9995% logical fidelity that it says strengthens its path toward a commercially viable, fault-tolerant quantum computer by 2029. The advance comes amid mounting concerns that increasingly powerful quantum machines could eventually undermine the cryptography protecting bitcoin and other cr

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