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New analysis from ARK Invest and Unchained finds roughly a third of Bitcoin could theoretically face quantum threats, but the risk is gradual rather than imminent. Here's what the research reveals about Bitcoin's quantum timeline and defense strategy.
Jameson Lopp's proposal to force a mandatory migration away from ECDSA and Schnorr signatures just got its official BIP number. It includes a hard deadline to freeze un-migrated coins. The community is not happy.
Bitcoin's Taproot upgrade promised privacy and efficiency, but adoption has collapsed from 42% in 2024 to just 20% in 2025. Quantum fears and the Ordinals hangover are driving users back to older formats.
Nearly $440 billion in Bitcoin sits in vulnerable wallets that quantum computers could crack. The question isn't if quantum attackers will come. It's whether Bitcoin will freeze the coins first.
Quantum fears have entered crypto market narratives in early 2026, with ETF outflows and institutional risk assessments starting to mention quantum computing. But the actual technical picture is far more nuanced.