There is an old joke among software developers that if you’d just write it correctly the first time, you’d never have to waste time debugging or testing your code. Anyone even remotely familiar with software development can see the absurdity of perfection that makes this a joke. Today, even the simplest of applications is a machine of almost unimaginable complexity in which a single misplaced character or seemingly innocuous line of code can create a serious flaw or vulnerability.
