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In the process the two became good friends and decided to team up to create a program called Copenheimer, and started a project of the same name. The program exploited a simple bug in Minecraft's code which allowed them to search for un-whitelisted servers on any version of the game. They used an automated version of a script already in existence to grief multiple servers. The project led to players such as WarLordN1k and Bezopasan joining the group. The project quickly gained mainstream attention after Fit covered the project after the group thought they managed to grief the server of Minecraft head developer Jeb, which turned out not to be the case. They also found and griefed the Mojang Test Server that was used in several videos on the Official Minecraft YouTube Channel. Multiple members of the group had their accounts banned for close to 10 years due to their actions of griefing Mojang servers as well as many streamer SMP servers. After the Fifth Column was featured in multiple mainstream YouTube channels, other server scanning programs began being used to find servers to grief in similar fashion to the one designed by The Fifth Column.