A rollback attack exploited the LuckLambo104 smart contract on February 3, 2020, one day after deployment. Attackers created attack contracts that executed transaction rollbacks, causing 6,588 TRX to be improperly redistributed from the contract. The attack highlights the importance of thorough security testing before mainnet deployment.

The hacker at the beginning of the TKnzni address continued to launch a transaction rollback attack on the LuckLambo104 contract address beginning with TGsyJF by creating an attack contract, and profited 6,588 TRX. The contract was created at 23:00 on February 01 and was attacked the day after it went live. The current contract balance has returned to zero.