🔍A 32-byte omission. A multi-million-dollar lesson. The root cause of the SecondFi wallet incident: the secret prefix used in Ed25519 nonce generation was dropped during implementation, allowing the private key to be mathematically recovered from a single on-chain signature. This wasn't a flaw in the cryptography — Ed25519 itself is sound. It was a failure of engineering implementation and missing test-vector verification. Beosin put together a full technical breakdown of the vulnerability. Would love to hear others' thoughts. #BeosinInsight #SecurityResearch #Web3 #CryptoEngineering(Beosin 🛡 Web3 Security & Compliance)