Circle Unveils Quantum-Resistant Roadmap for Its Layer-1 Arc Blockchain

Circle Arc blockchain launches into a threat environment, its competitors are only beginning to map: on Thursday, the stablecoin issuer published a full-stack, phased post-quantum security roadmap for Arc, targeting wallets, signatures, validators, and off-chain infrastructure through a four-phase implementation running to 2030.The announcement is not theoretical. Phase 1 deploys at mainnet launch, expected in 2026, …