The $1.4B Bybit heist is yet another reminder of what happens when financial systems are built on fundamentally insecure foundations. Forensic reports confirm that attackers injected malicious JavaScript via Safe{Wallet}'s compromised AWS S3 bucket, hijacking legitimate transactions and redirecting them to their own accounts. This exploit would have been impossible if Bybit had hosted the signing interface on its own infrastructure. These attacks will keep happening until we move beyond patchwork fixes and adopt architectures that eliminate shared attack surfaces altogether.