A plea agreement filed last week indicates Christopher Chaney of Jacksonville, Fla., will enter a guilty plea to nine counts including wiretapping.
However, Chaney's defense attorney Christopher Chestnut said he was working with prosecutors and wouldn't confirm the number of felony counts involved.
Prosecutors said Chaney hacked into the email accounts of Christina Aguilera, Mila Kunis and Johansson. Nude photos Johansson had taken of herself were later posted on the Internet.
The maximum prison term facing Chaney on the nine felony counts is 60 years.
