TheBlock
LayerZero published a blog post Friday apologizing for poor communication in the three weeks since the $292 million Kelp DAO exploit, conceding it should not have allowed its DVN to act as a sole verifier for high-value transactions.
Why it matters
The protocol attributed the attack to North Korea's Lazarus Group, which it says compromised internal RPC nodes and DDoS'd external ones to forge a cross-chain message. LayerZero also disclosed a previously unreported incident from roughly three and a half years ago in which a multisig signer used their production hardware wallet to execute a personal trade — a belated admission that lands awkwardly alongside the post-mortem of a nine-figure loss.
Market impact
LayerZero announced a series of security changes, including ending support for the 1/1 DVN configuration. The structural lesson for cross-chain infrastructure: a single verifier is a single point of compromise, and named-state-actor attribution does not retroactively harden the bridge.
Frequently asked questions
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What happened in the Kelp DAO exploit?
LayerZero says North Korea's Lazarus Group compromised internal RPC nodes and DDoS'd external ones to forge a cross-chain message, draining $292 million. The protocol has since apologized for its communication during the three weeks after the attack.
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What is the 1/1 DVN configuration LayerZero is ending?
A 1/1 DVN setup uses a single verifier — LayerZero's own — to confirm cross-chain messages. LayerZero conceded this should never have been allowed for high-value transactions and announced it is ending support for the configuration.
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What undisclosed incident did LayerZero reveal?
LayerZero disclosed a previously unreported incident from roughly 3.5 years ago in which a multisig signer used their production hardware wallet to execute a personal trade. The protocol did not say why it is surfacing the incident now.
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Who is the Lazarus Group and why does LayerZero's attribution matter?
Lazarus is a North Korean state-linked hacking group long associated with large crypto heists. Attributing the Kelp DAO exploit to Lazarus frames it as a state-actor incident rather than an opportunistic exploit — but naming the attacker after the fact does not harden the bridge.
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What security changes is LayerZero making?
LayerZero announced a slate of security changes, including ending support for the 1/1 DVN configuration. The protocol did not detail the full set of changes in the post.
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