Official Google Blog: A new approach to China: “primary goal of the attackers was accessing the Gmail accounts of Chinese human rights activists”
There is a very important blog post on Google Official blog that you might want to read it!
From Google Official blog:
We have already used information gained from this attack to make infrastructure and architectural improvements that enhance security for Google and for our users. In terms of individual users, we would advise people to deploy reputable anti-virus and anti-spyware programs on their computers, to install patches for their operating systems and to update their web browsers. Always be cautious when clicking on links appearing in instant messages and emails, or when asked to share personal information like passwords online.