A 31-year-old student who attended Temple Ambler admitted to using software to hack professors’ passwords last spring, the Washington Post reports.

Edwin Kim reportedly used keystroke logging software to obtain the passwords of some professors, in order to boost his grades. One professor reportedly could not enter the system, and later found Kim’s grade had been changed from an F to an A minus.

According to the report, Kim admitted to doing so, apologized and received probation and a $300 fine.

Kim could not be found in the university’s directory.