In the early hours of a cold Tuesday morning, chaos erupted in the blockchain community as reports emerged of a massive $325 million theft from the Wormhole bridge. The cyber heist, executed by an unidentified APT group, exploited a critical vulnerability in the smart contract’s signature verification process. Surprisingly, a $10 million bug bounty was offered to the attacker. Your mission: dissect the smart contract exploitation and unravel the mystery behind the bounty offer, tracing the steps of this audacious cyber operation.