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

This episode of the CoinDesk Podcast Network's Markets Outlook explores the urgent threat that quantum computing poses to the crypto ecosystem, particularly Bitcoin and other blockchains. Host Jen Wirth interviews Alex Pruden, CEO of Project 11 and former Green Beret, who explains how recent breakthroughs from Google and Caltech have drastically shortened the projected timeline for quantum computers to break current cryptographic standards—potentially as soon as 2030. The discussion centers on the fact that 35% of all Bitcoin is already vulnerable due to exposed public keys in legacy addresses, with Ethereum facing an even higher risk at around 70%. Pruden emphasizes that while post-quantum cryptography has been standardized by NIST and is being adopted by major networks like Ethereum, the decentralized nature of blockchains makes coordination and implementation extremely difficult. He warns of a 'reverse bystander effect' where no one takes responsibility, risking the collapse of trust in digital assets. The episode also touches on national security implications, institutional hesitation, and the economic incentives for adversaries to harvest data now for future decryption. Pruden concludes with a call to action: individuals and stakeholders must advocate for change now before it's too late.