(AP) — The list of federal charges against a former University of Nebraska-Lincoln student accused of hacking into a database of more than 650,000 student, alumni and employee records is growing.

A grand jury added to the charges against 23-year-old Daniel Stratman earlier this week. He was already charged with recklessly damaging a protected computer during the breach that happened in May 2012.

Now Stratman also faces nine charges of exceeding his authorized access to a computer and two charges of knowingly transmitting a program that damaged computers owned by the University of Nebraska and Nebraska State College Systems.

Stratman’s initial appearance on the new charges is set for July 2.

Stratman was a senior at UNL at the time of the breach and listed an Omaha address.