- Google has declared a 2029 deadline to migrate its products to post-quantum cryptography, citing faster-than-expected quantum hardware progress.
- Major crypto networks like Ethereum and Solana are actively developing quantum-resistant upgrades, with Ethereum targeting a 2029 implementation.
- There is significant industry debate on the quantum threat’s immediacy and the necessary actions, especially within the Bitcoin ecosystem.
On Wednesday, Google declared a 2029 deadline to implement quantum-resistant security across its product portfolio. The tech giant’s call for urgency is driven by rapid advancement in quantum computing hardware, including its own powerful Willow chip, and revised threat models. This marks the first time the company has announced a concrete timeline for this critical migration, signaling that quantum threats may be imminent.
However, this 2029 target is earlier than some IBM.com/downloads/documents/us-en/1550f812c451680b” href=”https://www.ibm.com/downloads/documents/us-en/1550f812c451680b” target=”_blank” rel=”nofollow noopener”>industry estimates for “Q-Day,” when quantum machines could break current encryption. “It’s our responsibility to lead by example and share an ambitious timeline,” the company stated. Consequently, the accelerated timeline aims to spur industry-wide action to protect digital infrastructure, including billions in cryptocurrency assets.
Consequently, major blockchain networks are also racing to develop post-quantum defenses. The Ethereum Foundation launched a dedicated hub on Tuesday and plans protocol-level quantum-resistant solutions by 2029. Meanwhile, Solana developers created a quantum-resistant vault in January 2025, though it requires users to store funds in specific Winternitz vaults.
Meanwhile, the Bitcoin community is divided on the necessity and urgency of such upgrades. Blockstream CEO Adam Back argues the quantum risk is overblown for decades. On the other hand, researchers like Ethan Heilman have proposed a new output type, Pay-to-Merkle-Root via BIP-360, to protect addresses. Heilman stated that implementing such a safeguard could itself take seven years.
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