Why 35% of Bitcoin Is Vulnerable to Quantum Attacks | Markets Outlook

This episode of Markets Outlook dives into the growing threat of quantum computing to the crypto ecosystem, focusing on the vulnerability of Bitcoin and other blockchains. Host Jen interviews Alex Pruden, CEO of Project 11 and former Green Beret, who explains how recent breakthroughs in quantum computing—particularly from Google and Caltech—have drastically shortened the timeline for a quantum attack on Bitcoin, potentially as soon as 2030. The discussion reveals that 35% of all Bitcoin is currently exposed due to legacy addresses with publicly visible keys, and Ethereum faces an even higher risk. Pruden emphasizes that the danger isn't just theoretical: quantum computers could break encryption in under nine minutes, faster than a Bitcoin block confirmation time, enabling attackers to steal funds from the mempool. He warns of a 'reverse bystander effect' where everyone assumes someone else will act, leading to inaction despite the existential risk. While protocols like Ethereum are prioritizing post-quantum cryptography, the decentralized nature of blockchains makes coordinated upgrades difficult. Individuals must also take responsibility by moving funds to quantum-secure wallets. The episode concludes with a call to action: the crypto community must act now to prevent a systemic collapse, even as quantum technology promises transformative benefits in other fields.