According to CoinMarketCap, a January 3, 2026 post highlights a new report asking whether quantum computing could put Bitcoin at risk as early as 2026 and links to the analysis (source: CoinMarketCap on X, Jan 3, 2026). Bitcoin’s signatures use ECDSA over secp256k1, which NIST notes would be vulnerable to a sufficiently large, fault‑tolerant quantum computer, while such machines do not exist today; NIST has released draft post‑quantum standards ML‑KEM and ML‑DSA to guide migration (sources: Bitcoin.org Developer Guide; NIST Post‑Quantum Cryptography overview 2024; NIST draft FIPS 203 and 204, 2024). U.S. policy guidance under NSA’s CNSA 2.0 directs federal systems to begin PQC transition from 2025 with completion targets into the early 2030s, indicating urgency but not an immediate break in 2026 (source: NSA CNSA 2.0, 2022). For trading, watch the full CoinMarketCap findings, NIST standard finalizations, and any Bitcoin Core developer proposals to mitigate exposed public keys as catalysts for BTC risk repricing (sources: CoinMarketCap on X, Jan 3, 2026; NIST 2024 PQC standards process; Bitcoin developer mailing list).