I believe the answer is: Integrity
Information with high integrity tend to let any unathorized person able to alter the information within the system. Compared to other form of violation, violation of integrity had the highest chance of occurrence from direct contact with authorized personnels. (in the sample above, the personnels might the one that provide the students with the key to the computers room)
Answer:Mesopotamia (from the Greek, meaning 'between two rivers’) was an ancient region located in the eastern Mediterranean bounded in the northeast by the Zagros Mountains and in the southeast by the Arabian Plateau, corresponding to today’s Iraq, mostly, but also parts of modern-day Iran, Syria and Turkey. The 'two rivers' of the name referred to the Tigris and the Euphrates rivers and the land was known as 'Al-Jazirah' (the island) by the Arabs referencing what Egyptologist J.H. Breasted would later call the Fertile Crescent, where Mesopotamian civilization began.
5, if you are including Trump.
Answer: Rural Free Delivery Act
Explanation: Rural Free Delivery Act was a law proposed by Georgia Congressman Tom Watson that would guarantee delivery of mail to people living in the countryside free of charge.