Historical retrospective · Security
Bridge architecture became a practical due-diligence topic
Bridge designs range from canonical rollup contracts to external validator committees, each with different verification and recovery assumptions.
Users often see a single “bridge” button even when custody, finality and message verification differ substantially across routes.
Exploit history made security-model comparisons more important than marketing labels.
Before bridging, identify who controls keys, how messages are verified and how an exit works during an outage.
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