The hacks found in program exploits usually use the rules of the com puter to bypass security in ways never intended. Program m ing hacks are sim ilar in that they also use the rules of the com puter in new and inventive ways, but the final goal is efficiency or sm aller source code, not necessarily a security com prom ise. There are actually an infinite num ber of program s that can be written to accom plish any given task, but m ost of these solutions are unnecessarily large, com plex, and sloppy. The few solutions that rem ain are sm all, efficient, and neat. Program s that have these qualities are said to have elegance, and the clever and inventive solutions that tend to lead to this efficiency are called hacks. Hackers on both sides of program m ing appreciate both the beauty of elegant code and the ingenuity of clever hacks