sadly there is a tool available that even allows cheating on v32 games, as the encryption-code is public available in ibProArcade itself
by now I have not found any way to detect this external tool but will think of even more secure scoring for a future version - by now it seems you have to ban those members, sorry...
But be sure that tool is not available too public, so v32 keep being more secure than the old v3arcade-games which submit the score as plain text...