Vitalik Buterin Warns, Quantum Computers Could Break Crypto by 2040

Lack of market certainly would prevent it if nothing else.

I'm not sure quantum changes that short term, or needs to: You have non-stark PQ schemes (e

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This reminder underscores that while the threat may not feel immediate, it’s close enough on the horizon to demand serious attention today.

Metaculus's median date for when quantum computers will break modern cryptography is 2040:https://t

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FAQs

What is the quantum computing threat to crypto?

Quantum computers could break the cryptography securing blockchains and digital wallets by 2040, with a 20% chance it happens before 2030, risking all digital assets.

What does ‘soundness’ mean in quantum crypto?

Soundness ensures cryptographic systems like blockchains remain trustworthy and secure even against the superior processing power of future quantum computers.

How is the crypto community preparing?

Researchers are developing post-quantum cryptography and advancing zero-knowledge proof systems like STARKs to create quantum-resistant algorithms and blockchains.

Are current cryptocurrencies quantum-safe?

No. Current crypto like Bitcoin and Ethereum rely on classical cryptography. The community is actively working on post-quantum solutions to future-proof digital assets.

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