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Bitcoin Quantum Attack Estimated at 1,151 Qubits
Original: Bitcoin Quantum Attack Cost Halved to 1,151 Qubits [2026]
New analysis claims the cost of a quantum attack on Bitcoin's cryptography has been halved, with an estimate of 1,151 qubits now cited for 2026. The revised figure suggests quantum computers capable of breaking Bitcoin's encryption may arrive sooner or cheaper than previously assumed, reviving debate about how urgently the network should adopt quantum-resistant safeguards.
Why now: Fresh research lowering the estimated qubit requirements raises renewed concern about Bitcoin's vulnerability to quantum computing.
Bitcoinquantum computingcryptography
Evidence
- Bitcoin Quantum Attack Cost Halved to 1,151 Qubits [2026] · shattered.io
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