An object of the present invention is to prevent secret information that is being internally processed from being inferred through operational information of a secured device, including the current consumption information. A surface cover can be provided with a cover snap member that has a drill guide through which a hole can be drilled into the surface. The flexible conductive film has a film conductive pattern formed not only the outer surface of the flexible insulating film but also on the inner surface of the flexible insulating film. Hybrid maize seed, plant or plant part produced by crossing the inbred line PHEBA or a trait conversion of PHEBA with another maize line.