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Grayscale: quantum computing won't threaten Bitcoin in 2026; break unlikely by 2030
On December 16, 2025, Grayscale said in its 2026 Digital Asset Outlook that quantum computing is a long‑term challenge and will not threaten Bitcoin or broader crypto markets in 2026. The firm added that adoption, regulation, and capital flows will drive performance, while machines capable of breaking Bitcoin's cryptography are unlikely before 2030.