According to CoinMeta, an official announcement from Maplestory Universe stated that on November 12, some off-chain server infrastructure was found to have been accessed without authorization, and maintenance was initiated for all services starting at 12:43. Preliminary investigations indicate that the blockchain and smart contracts were not affected, and no assets were found to have been transferred or stolen. Records such as some users' wallet addresses, login information to IP, device details, and certain email addresses were accessed. Information from 328 applications registered with Builder Center was also affected, including the keys associated with API. The project team has blocked the intrusion path and replaced the affected servers, and will change the operational keys before resuming services. The investigation is still ongoing.