Students Waiting to Hear If Prestigious Business Schools Have Accepted

Short Answer

Students waiting to hear if prestigious business schools have accepted them into next year's class come across instructions on an online bulletin board posted by an anonymous hacker. The hacker posts simple directions for students to gain access to the business school's acceptance letters. By typing in a web address, www.businessschoolisus.edu/admissions/acceptance/johndoe.cfm, students can access their own letters only. (That is, the hacker tells them to replace johndoe with their own names to get into their own files.) Several students use the instructions and see their acceptance or rejection letters before they are mailed out and official. What crime, if any, have they committed?