Users who purchased Ledger hardware wallets through a Malaysian reseller have lost an estimated $100 million across six blockchain networks following a supply chain compromise. The incident has reignited debate over self-custody security, with some experts suggesting a return to trusted intermediaries while others argue users have fundamentally misunderstood their security surface. Separately, Ethereum researcher Justin Drake warned that AI-accelerated mathematical advances could potentially break cryptographic keys before quantum computers pose a threat. This emerging risk vector adds urgency to ongoing discussions about post-quantum cryptography and the long-term security assumptions underlying current blockchain infrastructure.