PRESCOTT, AZ - Three 16-year-old Prescott High School students have been arrested on suspicion of hacking into teachers' computers and changing grades.
Prescott police said the students purchased a "key logger" device and used it to obtain the usernames and passwords of several teachers.
The students then allegedly used the logins to access and modify grade sheets.
A teacher became suspicious when she noticed that one of the student's grades in his records wasn't consistent with that student's efforts in class. The teacher contacted the IT department and discovered the hacking.
The students reportedly admitted to the scheme to a Prescott police investigator. All three were arrested on suspicion of tampering with public records and computer tampering, which are felony charges.
It's believed that the students began accessing grade books in January, police said.