Breaking Down Bridge Security Models
summary
Ranks bridge designs by concrete attacks and defenses: natively verified wins economic security because an attacker must 51% the underlying chain, but is hard to re‑use across domains; externally verified needs bribing or key loss of the bridge validator set (Ronin‑style); optimistically verified uses a Merkle‑root fraud proof and a delay window so attackers must bribe all watchers, censor the home chain, or censor the destination. Recommends simple contracts, circuit breakers/rate limits, monitoring and fast incident response; predicts larger bridge losses up to a billion dollars.
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chapters (6)
- 0:00Intro
- 1:01Contagion Risk
- 3:31Types of Security
- 6:08Winner: Economic Security
- 9:24Winner: Implementation Security
- 11:25Winner: Environment Security
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