More than two billion dollars has been stolen from cross-chain bridges since 2021. Ronin, Wormhole, Nomad, Harmony Horizon — the list of exploited bridge protocols reads like a chronicle of the same mistake repeated with varying degrees of sophistication. The mistake is not a bug. It is the fundamental architecture of the problem: moving assets between blockchains requires trusting something, and in distributed systems, trust is the attack surface.

The industry has not resolved this. It has repackaged it.