Bitcoin Developers Sound Alarm on Quantum Threat, Propose New Defense Plan
Casa CTO Jameson Lopp, alongside five fellow developers, has introduced a proactive proposal aimed at shielding Bitcoin from the future risks of quantum computing.
The team’s goal: encourage the transition to quantum-resistant wallets before a breakthrough in quantum tech puts user funds at risk.
While current quantum computers can’t yet crack Bitcoin’s cryptographic systems, future advancements could eventually break widely used protections like ECDSA and SHA-256. That could expose up to 25% of BTC, including coins in dormant legacy wallets. Lopp warned the fallout from such an attack would be catastrophic, flooding the market with stolen coins and eroding trust.
The proposed Bitcoin improvement plan urges holders and miners to migrate to post-quantum-secure addresses. If they don’t, the plan states, they risk permanent loss of access. The strategy frames security as a personal incentive: upgrade or lose your funds.
The proposal also references BIP 360, a quantum-safe upgrade designed by Anduro’s Hunter Beast, and includes contributions from developers like Marathon’s Michael B. Casey, who supports limiting vulnerable wallet activity to delay potential attacks.
While some analysts downplay the urgency, Lopp maintains the Bitcoin community must act early—before quantum computing becomes a real-world threat rather than a theoretical one.
Alex is Editor-in-Chief of Coindoo and co-founder of Millennial Media Group, with nearly a decade of experience covering financial markets - crypto first, then everything else. It started in 2016 with Bitcoin. Like most people at the time, he didn't fully understand it - so he kept digging. Blockchain, tokenomics, the projects, the cycles. That curiosity never stopped, and eventually pulled him into traditional markets too: equities, commodities, macro. Not because he left crypto behind, but because you can't properly understand one without the other. What drives him is straightforward: he wants to know why something is happening, not just that it's happening. Most market coverage stops at the headline - price up, price down, here's a chart. Alex finds that kind of reporting actively unhelpful. If you walk away from an article without understanding the mechanism behind the move, what did you actually learn? He holds a degree in Tourism from New Bulgarian University - not the most obvious path into financial markets, but markets have a way of pulling in people who are simply too curious to stay out. He has authored over 200 in-depth analyses and more than 10,000 articles across crypto and traditional finance. He still thinks every day in markets teaches him something new. That's probably why he hasn't stopped.
