CertiK has reported a significant security breach involving the theft of 520,000 0G tokens from the 0G Labs reward contract. The incident occurred on December 12 and involved abnormal withdrawals facilitated through Tornado Cash. Attackers exploited a privileged emergency withdrawal function to siphon off the tokens, which are valued at approximately $516,000. This breach underscores persistent vulnerabilities in smart contract security, emphasizing the need for enhanced protective measures in the crypto space. The event is a stark reminder of the challenges faced by blockchain projects in safeguarding digital assets.