Grayscale: Quantum Threat to Bitcoin Still Years Away

Grayscale’s 2026 Digital Asset Outlook highlights that, although quantum computing represents a long-term threat to blockchain cryptography, Bitcoin and the broader crypto market are unlikely to face price or valuation impacts in 2026. The report notes that most public blockchains will eventually require post-quantum cryptography upgrades. However, experts estimate that a quantum computer capable of breaking Bitcoin’s public-key cryptography and forging digital signatures is unlikely to emerge before 2030, keeping Bitcoin secure in the near term.