Excellent post on CNET News that answer a few questions about the attacks and Google’s responses :
- What happened?
 - What companies were targeted?
 - Who was behind the attacks?
 - How were the companies targeted?
 - Were insiders involved?
 - What was stolen from the companies?
 - Does this follow the pattern of other attacks?
 - Was Google particularly vulnerable to these attacks?
 - Is there a way consumers can protect themselves from this?