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- The crypto industry's reaction was that a quantum computing threat was still distant when Google unveiled its Willow quantum chip in December 2024.
- Bitcoin uses SHA-256 for mining and ECDSA for signatures, both of which are theoretically vulnerable to quantum decryption, but the consensus was that the threat was decades away.
- Breaking encryption would require millions of physical qubits (a unit of information in quantum systems).
- That story has marginally changed sixteen months later, and Google isn't dismissing anything.
- The company announced this week that it is setting a 2029 deadline to migrate its authentication services to post-quantum cryptography, citing progress in quantum hardware, error correction, and factoring resource estimates.
- The Android 17 mobile operating system is already integrating post-quantum digital signature protection.
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Nguon tham khao: https://www.coindesk.com/tech/2026/03/28/watch-out-bitcoin-devs-google-says-post-quantum-migration-needs-to-happen-by-2029