Seems like all the big boys are getting hit this week. In a recent blog post Microsoft announce it too has experienced a security intrusion much like some of the other top tier names this week. Although they make note it is too early to tell if any data was affective, it's funny to note they blamed their Mac division.

"Consistent with our security response practices, we chose not to make a statement during the initial information gathering process. During our investigation, we found a small number of computers, including some in our Mac business unit, that were infected by malicious software using techniques similar to those documented by other organizations. We have no evidence of customer data being affected and our investigation is ongoing."
 Hackers go after Microsoft.