Upbit Hot Wallet Drained via Internal System Signature Generation Flaw
The exchange's internal wallet software generated predictable signature data, enabling the Lazarus Group to reconstruct private keys and drain $30M in Solana assets.
Centralized Exchange Hot Wallet Signing Flow Compromised on Solana
State-sponsored threat actors bypassed CEX operational controls, draining $35 million in Solana assets via a rapid, high-frequency withdrawal approval attack.
