In August 2022, the Nomad bridge was drained of $190 million over eight hours. The on-chain signal was there from the very first transaction. Nobody caught it in time.
We built . If you work on a bridge team and want your bridge added, open an issue it's just a config file, not a PR into core logic.
The Broader Point
Bridges are not going away. Cross-chain activity is growing. The tooling to protect it needs to catch up.
Heimdall is one piece of that. Open source, focused, and built on the premise that the signal for most bridge exploits is not subtle, it's just not being watched.
Block 15259101 was eight hours before the last dollar left Nomad. That's eight hours to alert, respond, pause, and potentially save $190 million.
That window exists for the next bridge too. Heimdall is watching for it.
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