Financial services giant Circle has launched a comprehensive quantum-resistant roadmap for its Arc blockchain platform, positioning itself at the forefront of the industry's defense against emerging quantum computing threats. The company announced that Arc users will be able to create wallets that withstand future quantum computer attacks from day one, with Arc Privacy set to be post-quantum secure upon launch. This strategic move comes as Google researchers have warned that a sufficiently powerful quantum computer could break Bitcoin's core cryptography in under nine minutes, with such threats potentially emerging as early as 2029. Circle plans to phase in quantum resistance across wallets, private state, validators and infrastructure using an opt-in approach for post-quantum signatures on mainnet, while warning about advances in quantum computing and potential 'harvest now, decrypt later' attacks. The announcement reflects growing industry urgency around quantum preparedness, as traditional blockchain cryptographic systems face unprecedented vulnerability to quantum computing advances.