Academic integrity means giving credit where credit is due in an academic setting.
It is an ethical obligation of all people who perform intellectual work including students, faculty members, and administrators to preserve the importance of academic integrity. If the source of intellectual work is not correctly cited, them the person who uses that source has stolen the property of someone else and will be liable for theft of intellectual property. Lack of academic integrity is unfair to yourself. When you come to the University, you are committing yourself to engagement in learning and growth. If you cheat, then you have cheated yourself out of important experiences that could change your life.