One thing I’ve started to appreciate about blockchain security is that being secure today doesn’t automatically mean being ready for tomorrow. Quantum computing and AI-assisted mathematical breakthroughs could eventually challenge some of the cryptographic assumptions we rely on. Nobody knows exactly when or how that might happen, but preparing for change is something infrastructure should consider long before it becomes urgent. This is where @Starknet caught my attention. Its security architecture has an interesting separation of responsibilities. STARK proofs use hash-based cryptography to verify that computations were performed correctly. Meanwhile, transaction authorization is handled through programmable accounts, because Starknet accounts are smart contracts rather than fixed protocol-level signature rules. That distinction matters more than it might seem. If a new signature scheme becomes necessary, an account can adopt a different verification method without requiring every user on the network to upgrade simultaneously. In other words, the proving layer and the authorization layer have room to evolve independently. But account-level flexibility is only part of the picture. As an Ethereum L2, Starknet still depends on Ethereum’s cryptographic foundations and its upgrade and migration timeline in areas tied to Ethereum. Even if Starknet can adapt parts of its own account security, some changes ultimately involve dependencies beyond its direct control. That’s why its exploration of an independent L1 is worth following. Greater control over its own infrastructure could give Starknet more freedom to coordinate critical security upgrades and respond to new cryptographic requirements without relying entirely on Ethereum’s timeline. I see two different but connected ideas here: → Programmable accounts provide flexibility for users and developers to change authentication methods. → An independent L1 could provide greater autonomy over network-level security decisions. Neither means Starknet is already fully quantum-safe. Existing accounts, Ethereum-related dependencies and migration work still matter. Some post-quantum implementations are also experimental and should not be confused with audited, production-ready solutions. What I find most interesting is the bigger philosophy behind all this. We cannot build security around the assumption that today’s cryptography will remain sufficient forever. We need systems that can evolve without having to rebuild everything from scratch. For me, cryptographic agility isn’t just about preparing for quantum threats. It’s about making sure a blockchain has the ability to respond when the rules of security eventually change. More research: https://t.co/A5MiaKoy3t @Starknet