From Development Tool to Autonomous Agent: Why Web3's Security Model Is Failing

As AI evolves from development assistant to autonomous agent executing production decisions, traditional security models fail—especially in Web3 where code directly controls capital. The recent marketplace attack illustrates how developers now skip verification when interfaces appear trustworthy, revealing an exploitable architectural weakness. This shift demands rethinking threat models entirely, as autonomous systems with hidden execution paths now operate beyond human oversight in financial infrastructure.