The usability of software is usually defined in relation to the efficiency with which people can manipulate it. Is it time-saving, intuitive, likable? But often overlooked is how usability indirectly affects security, especially when dealing with enterprise software. The basic thesis is this: an application that's easier to use, easier to configure and manage both initially and over time, will also be more resilient than an application that's difficult or frustrating, even if the two have identical feature sets. This is because in practice, software is rarely, if ever, used in an ideal fashion.