The Dannys of the shadowy world of hackers belong to a special category that falls somewhere in between the merely-curious-but-entirely-benign and the dangerous. Dannys have the knowledge of the expert, combined with the mischievous hacker's desire to break into systems and networks for the intellectual challenge and for the pleasure of gaining insight into how technology works. But their electronic breaking-and-entering stunts are just that—stunts. These folks, these benign hackers, illegally enter sites for the sheer fun and exhilaration of proving they can do it. They don't steal anything, they don't make any money from their exploits; they don't destroy any files, disrupt any network connections, or crash any computer system. The mere fact of their being there, snaring copies of files and searching emails for passwords behind the backs of security and network administrators, tweaks the noses of the people responsible for keeping out intruders like them. The one-upmanship is a big part of the satisfaction.