Records show 22-year-old David Kernell faces a possible prison sentence of 15 to 21 months. He was found guilty April 30 in federal court in Knoxville of obstruction of justice and unauthorized access to a computer.
The former Alaska governor and her daughter testified the hacking caused emotional hardships.
Kernell's attorney contended the hacking was a prank.
The judge at a brief Wednesday hearing agreed to consider a defense motion challenging the obstruction case.
A prosecutor declined comment Thursday, while a defense attorney didn't immediately return a phone message.