A Concord, Calif., high school student was arrested on May 9 after logging into his high school's grading system network and changing students' grades except his own. About 70 miles southwest of Sacramento, a 16-year-old Ygnacio Valley High School sophomore created a phishing email, which isn't a traditional "hack" rather a trick to get unsuspecting victims to reveal their log-in user names and passwords - one teacher fell for it.