Google has unveiled a quantum chip called Willow with 105 qubits that can solve problems in minutes that would take supercomputers billions of years. However, despite the breakthrough, experts are confident that Bitcoin's security remains untouched.
Emin Gün Sirer, founder of AVA Labs, noted that current quantum computers operate at a linear scale and are unable to effectively crack Bitcoin’s encryption. The cryptocurrency is protected by the ECDSA 256 and SHA-256 algorithms, which would require quantum computers with millions of qubits to crack — far beyond Willow’s capabilities.
Risks arise only when public keys are revealed in transactions, but attackers have limited time before their confirmation in the blockchain.
The creator of Bitcoin, Satoshi Nakamoto, anticipated a transition to new hash functions in the event of threats, which confirms Bitcoin's ability to adapt to technological changes.
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