Vitalik Buterin Warns Quantum Computing Could Undermine Crypto Security
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Ethereum co-founder Vitalik Buterin has raised concerns that the rise of quantum computing could disrupt the foundations of digital security and blockchain technology.
According to Buterin, the cryptographic protections that secure bank accounts, cryptocurrencies, and online communications may not withstand the power of future quantum processors.
While current systems resist attacks from classical machines, quantum computers could eventually crack private keys with ease – a scenario that threatens both financial stability and personal privacy.
Experts argue the challenge goes deeper than leaked data. Cryptographer Ian Miers recently emphasized that the real danger lies in system integrity. If quantum machines undermine the “soundness” of blockchains and proof mechanisms, the trust anchoring digital assets could unravel. He suggested that proof systems like STARKs may need to evolve into more advanced zero-knowledge structures to stay resilient.
Buterin cited projections from forecasting platform Metaculus, which estimate a 20% chance that quantum computers capable of breaking today’s cryptography could arrive before 2030.
By 2040, such breakthroughs are expected to be highly likely. For Buterin, that probability is enough to warrant immediate research into post-quantum solutions rather than waiting for the problem to become urgent.
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