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Hacker changed grades for dozens of high school students, officials say

DIXON, Calif. - A Northern California high school student is accused of hacking into his school's computer system and changing other students' grades, reports CBS Sacramento.

Juan Ambriz, an 18-year-old senior at Dixon High School, is accused of changing more than 200 grades for at least 32 students, according to the station. Officials believe he began altering the grades in January, but it wasn't noticed until last week.

Ambriz is reportedly facing a felony charge of unauthorized access of a database. Police in the community about 20 miles from Sacramento say they haven't ruled out making more arrests.

All 32 students who had their grades altered will be interviewed by authorities, CBS Sacramento reported. Three of those students have already been suspended.

The school is reportedly leaving open the option of withholding diplomas if the investigation stretches past next month's scheduled graduation.