While expense reports are bit less exciting than emails, Sony is no doubt unhappy about the situation. It was investigating legal options when WikiLeaks added the first batch of documents to its database. It also threatened to sue Twitter if it didn't ban accounts that were tweeting leaked emails steming from the breach. The company then found itself on the receiving end of a class-action suit when two former employees sued it for not adequately protecting employee information.

We have reached out to Sony about today's news and will update this article if they respond to queries.