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The Polylog Crypto Intelligence Brief

Morning Edition · Tuesday, July 21, 2026Published at 1:29 AM EDT · New York

Draft Bitcoin Proposal Would Force Migration to Quantum-Resistant Addresses and Freeze Vulnerable Coins

BIP-361 sketches a phased transition in which, roughly three years after any activation, spending from legacy quantum-exposed addresses would become impossible.

Draft Bitcoin Proposal Would Force Migration to Quantum-Resistant Addresses and Freeze Vulnerable Coins

A draft Bitcoin Improvement Proposal, BIP-361, would prepare the network for the threat posed by quantum computers. The proposal envisions a phased migration to post-quantum address types. On the described timeline, roughly three years afte…

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Quantum Risk Moves From Theory to Crypto Roadmaps

Over the next 3-6 months, quantum-resistance becomes a concrete design and custody concern across major chains and institutional custodians, driving opt-in post-quantum schemes and 'long-dormant coin' risk discussion.