The post Ethereum Faces Quantum Threat in Google Report appeared on BitcoinEthereumNews.com.

Google said quantum machines could crack top Ethereum wallets in under nine days. Admin keys linked to $200 billion in assets face rising quantum theft exposure now. Validators and layer-2 networks carry major exposure in Google’s quantum model now. Google’s quantum computing team published a white paper that mapped several quantum risks across Ethereum. The paper said a sufficiently advanced quantum computer could crack the private keys of Ethereum’s 1,000 wealthiest wallets in under nine days. Those wallets hold more than 20 million ETH. The paper also set out a timeline that researchers said no longer leaves room for complacency. The report tied wallet risk, smart contracts, validators, and layer-2 systems into one widening threat. Ethereum wallets now rely on a private key and a public address. That system stops attackers from working backward from the public address to the private key. Google said quantum machines would break that barrier once they become powerful enough. Could Ethereum harden its defenses before that point arrives? Wallet Exposure Comes First Google said Ethereum faces five separate levels of exposure. The first and most direct threat sits with individual wallets. The top 1,000 wallets alone hold about 20.5 million ETH. The paper said a fast quantum computer could crack a single wallet’s private key in about nine minutes. That estimate turned a distant concern into a specific security window as it also framed the scale of risk for large holders. Google used Bitcoin to show the speed of that threat. A Bitcoin block takes about ten minutes to confirm. Project Eleven said that the gap could let an attacker steal funds from a pending transaction in a mempool attack. Smart Contracts Extend the Threat The paper said smart contracts also face serious exposure. These programs run lending, trading, and stablecoin issuance across Ethereum.…

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Filed under: News - @ April 1, 2026 2:36 pm