And a quick glance shows that the code isn't written in a terribly obvious and defensive manner. For example, just by skimming you can spot loads and loads of

And a quick glance shows that the code isn't written in a terribly obvious and defensive manner. For example, just by skimming you can spot loads and loads of unchecked arithmetic. How can you know none of that can be exploited? The code doesn't do a lot to assure you of that.