Vitalik Buterin Says Ethereum Will Soon Achieve Quantum Resistance

Vitalik Buterin says Ethereum (ETH) will achieve quantum resistance soon via post-quantum hash-based signatures in the Strawmap, a four-year Layer 1 (L1) upgrade plan. Why it matters: Quantum computers could break Ethereums current encryption; hash-based signatures would close that gap before the threat arrives. Buterins confirmation moves quantum resistance from a research topic to a scheduled Ethereum upgrade target. The Strawmaps six-month fork schedule means quantum-resistant slots could ship within the plans first two upgrades. The details: Buterin confirmed the timeline via X on February 26, 2026, citing the Ethereum Foundations Strawmap. The Strawmap was published after an Ethereum Foundation workshop in January 2026. The name blends strawman and roadmap, meaning the plan is experimental and built to be revised. The four-year plan targets ~7 forks every six months; Glamsterdam and Hegot are confirmed for 2026. Buterin also proposed cutting block time to 2 seconds and finality from ~16 minutes to 616 seconds. The big picture: Bitcoin and Solana ecosystems are also running post-quantum research, making it a growing priority across blockchains. A fixed six-month fork schedule marks a faster, more structured upgrade cadence for Ethereums L1. The Strawmap is explicitly a draft timelines, including quantum resistance, could shift as development progresses.