The study aimed to investigate the correlation between the students' type of motivation (extrinsic/intrinsic) and their attitude toward the ethics of the use of information technologies, as well as the individual differences in students' unethical Internet use concerning intrinsic and extrinsic motivational orientations. There was used the Internet-triggered Academic Dishonesty Scale to measure unethical behavior and the Work Preference Inventory to determine motivational orientations for university students. The results of this study indicate significant relationships between the motivational orientation factors and the Internet-triggered academic dishonesty behaviors. There are positive correlations between the dimensions of extrinsic motivation and the dimensions of unethical Internet use (reward and falsification, reward and misuse, recognition). As far as intrinsic motivation is concerned, there is only one positive correlation between pleasure and fraudulence. Depending on age, the research result shows that younger students are more prone to unethical behaviors on the Internet than older students. The study is expected to provide a significant contribution to the understanding of ethical Internet behaviors and to generate appropriate mechanisms for education and awareness of these issues by students and professors from higher education.