A written endorsement has now become the key piece of evidence in court. KelpDAO has filed suit against LayerZero and Bryan Pellegrino, alleging that the two had previously given written approval to a bridge setup — the very setup at the core of the rsETH exploit on April 18 this year, which resulted in $292 million in losses.

According to The Block, KelpDAO's filing claims that the cross-chain bridge architecture in question wasn't adopted without scrutiny — it had reportedly received written endorsement from LayerZero and Pellegrino. If this claim holds up, it would shift part of the responsibility onto those who endorsed it, rather than resting solely on KelpDAO's own technical judgment.

For now, that's all the publicly available information there is. Specific details on the damages sought, the court jurisdiction, and any further response from the parties involved have yet to be disclosed.