XRP Ledger’s Post-Quantum Push: What Ripple Is Actually Doing to Prepare Ripple has published a multi-phase roadmap to make the XRP Ledger resistant to quantum computing attacks, aiming to achieve full post-quantum readiness by 2028. The move comes after Google Quantum AI research confirmed that the cryptography underpinning most blockchains today can, in principle, be broken by sufficiently advanced quantum hardware. Assets are not at risk today. But the threat has shifted from theoretical to credible, altering the preparation timeline. The question isn’t whether quantum computing will eventually matter for crypto. The question is whether XRP holders need to do anything about it right now. BSCN@BSCNewsApr 20, 2026RIPPLE: $XRP LEDGER WILL BE QUANTUM RESISTANT BY 2028@Ripple is making its $XRP Ledger quantum-ready. These super-fast machines could one day break the codes that protect digital money today. The company has a clear plan to complete the upgrades by 2028 across four phases in… pic.twitter.com/RsA5jY2uqb What Does Post-Quantum Actually Mean for the XRP Ledger? Think of your XRP wallet like a padlock secured with a math problem so hard that no computer today could crack it in a reasonable timeframe. Quantum computers don’t just work faster; they approach certain math problems in a fundamentally different way, like having a master key that can solve the puzzle directly. The specific algorithms that protect blockchain wallets and transaction signatures are vulnerable to this kind of attack. There’s a subtler threat layered on top of that. Researchers call it “harvest now, decrypt later.” Every time an XRP account signs a transaction, its public key becomes visible on-chain. A bad actor could quietly collect that data today and hold it, waiting for quantum hardware to mature enough to use it. By the time the attack is technically possible, the groundwork will already be laid. Ripple is