Circle's Arc announces quantum resistance roadmap

Arc, Circle's (CRCL) Layer 1 chain optimized for stablecoins, has announced a quantum resistance roadmap, Wu Blockchain reported. The plan involves applying quantum resistance across its entire infrastructure, including wallets and validators, and adding a post-quantum signature feature to the mainnet as an opt-in model for users. Circle noted that the advancement of quantum computing could threaten existing public key-based cryptocurrency security systems by 2030 or earlier. The company also warned against "Harvest Now, Decrypt Later" attacks, in which encrypted data is collected now to be decrypted in the future using quantum computers.