Adam Back says Taproot tweak is post-quantum secure, December 25, 2025

On December 25, 2025, Blockstream CEO Adam Back argued that Bitcoin need not be redesigned to counter hypothetical quantum threats, saying Taproot's key tweak was recently proven post‑quantum secure. He suggested deprecating key‑path spends if CRQC ever emerged and criticized hash‑only formats, while BIP 360 advocates push stronger guarantees despite potential feature trade‑offs.