Resumen
Computer security is an important part of the computer science (CS) curriculum in all kinds of universities. Although the educational approach tends to be highly technical and practical, it cannot be avoided that some understanding and memorizing of the core concepts is necessary beforehand. One method that has been found to work in favor of human psychology, and of special interest in the case of online learning, where student motivation is at a higher stake, would be to present such content as memorable and relatable situations to the reader, using some form of fictional storytelling. However, this approach must always serve its educational purpose first, following a set of sound design principles. This paper presents a study including 111 participants to evaluate the convenience of using a digital book called the ?novelette?, which relies on storytelling, to teach computer security concepts in the CS degree of Universitat Oberta de Catalunya (UOC), a 100% online university. The study involved two questionnaires to gather quantitative and qualitative information about the format, content and students? perception. This study shows that the validity and usefulness of this approach is on par with traditional ones, but also has a higher impact on student motivation and self-perception of the acquired knowledge.