Academic misconduct by students is a serious issue that threatens the public trust in higher education institutions. In the current study, we examine whether SACCIA (Sufficient, Accurate, Clear, Contextualised and Interpersonally Adaptive) communication predicts lower academic misconduct via attitudes towards cheating and understanding what 'counts' as academic misconduct. Participants (N = 319) completed an online questionnaire in Qualtrics measuring SACCIA-adherent communication, academic misconduct, positive attitudes towards cheating and understanding what constitutes misconduct, along with control variables (Big 5 personality traits and Honesty-Humility). The results indicated that the effect of SACCIA communication on academic misconduct was exerted via attitudes, but not via understanding of what constitutes 'academic misconduct'. The more SACCIA-conforming the communication was, the lower the positive attitudes towards cheating, and the lower the positive attitudes the less self-reported misconduct. The findings suggest that universities could facilitate negative attitudes towards cheating and subsequently lower misconduct if they communicate about academic integrity in a SACCIA-adherent manner.