Crypto•23 July 2026•
1 min read

Quantum Computing Threatens 35% of Bitcoin Supply by 2029

Key Facts

1Bitcoin faces a quantum computing threat that could expose 35% of its supply to risk.
2Google projects encryption risks from quantum computing as early as 2029.

Amid rapid advancements in supercomputing, the Bitcoin network faces a potential existential threat that could undermine its traditional security architecture. According to reports, progress in quantum computing could expose approximately 35% of the total Bitcoin supply to risk, specifically targeting older wallet addresses. These warnings emerge as concerns grow over the ability of quantum machines to break the current encryption algorithms that the network relies upon.

Projections from Google suggest that real risks to existing encryption standards could materialize as early as 2029. Based on available facts, this threat stems from quantum processing power's potential to crack the ECDSA encryption used by Bitcoin, which could lead to the draining of funds from exposed wallets before owners can react. While other projects like Ethereum and Algorand have begun establishing roadmaps for quantum resistance, Bitcoin continues to face challenges in the speed of its technical adaptation.

Investors should watch for any updates from the Bitcoin developer community regarding new cryptographic proposals. Additionally, the upcoming economic calendar features significant data that may impact general risk appetite, including the Michigan Consumer Sentiment index and US inflation expectations scheduled for July 17, 2026.