Security concerns around 'seed generation' in hardware wallets have resurfaced after reports linked a key-generation weakness in COLDCARD to more than $100 million in losses for Bitcoin (BTC) holders, underscoring how small design trade-offs in randomness can cascade into catastrophic breaches. According to Decrypt, the incident was traced to insufficient 'entropy'—the amount of randomness used during seed creation—in a subset of COLDCARD devices.