Harmony protocol exploited for 2.385 trillion ONE tokens via cross-shard validation flaw, forcing full network rollback and bridge pause.
Security & Exploits ·
An attacker exploited cross-shard validation flaws in Harmony Protocol to illegally mint 2.385 trillion ONE tokens through 477 successful fraudulent transfers executed in 106 seconds, causing ONE's price to decline over 30%. Harmony responded by rolling back both shards to their August 11 state, deploying an emergency patch, and pausing cross-chain bridge services, with over 99.9% of the counterfeit tokens tracked according to https://www.chaincatcher.com/en/article/2283447.