outsourced it elsewhere. tonight the fbi is scrubbing sewn think's computer system trying to gather enough evidence to be able to definitively point the finger at the hacking culprit. >> it is a complexioned nuanced investigation and involves not just going into your own i.t. systems but the more sophisticated hackers have gone through multiple, multiple infrastructures to get to where they've gotten to so it's not something that's going to be solved by sony in a day or week or month. >> reporter: it's had a devastating affect on the company. revealing personal information and salacious e-mails. it's believed the sony hackers began penetrating their computer system as early as this past summer. but it wasn't until later the company reported it to authorities who began investigating in november. pamela brown, cnn, washington. now, a person close to the situation says sony has no plans