Computer users copy computer software - this is well-known. However, less well-known are the reasons why some computer users choose to make unauthorized copies of computer software. Furthermore, the relationship linking the theory and the practice is unknown, i.e., how the attitudes of ordinary end-users correspond with the theoretical views of computer ethics scholars. In order to fill this gap in the literature, we investigated the moral attitudes of 249 Finnish computing students towards the unauthorized copying of computer software, and (...) we then asked how these results compared with the theoretical reasons offered by computer ethics scholars. The results shed a new light on students' moral attitudes with respect to the unauthorized copying of software. In particular, this new knowledge is useful for computer ethics teachers, and for organizations seeking to combat this practice. (shrink)