
As a result of the survey,
For preliminary inspection before opening a new server, the server was turned on and only a limited number of QA personnel had access to it.
-> Not hacking
However, in addition to an error in access permission settings, network access from the outside was not blocked.
It was confirmed that there was a vulnerability that could be used to log in to the server by altering packets, and through this, characters were created abnormally.
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