It might be a bit alarmist and controversial as to the value of the data that was copied, but there's some good information here. As a result, I've created a new email account for all corporate communications to reduce my exposure in the future. I suppose that I should have done this ages ago, but I didn't.
One suggestion for creating such an account: run the word through Google to see how many hits it gets. The root word that I chose only had 110 hits (it's non-English), and when I added a suffix to it there were zero hits.
http://threatpost.com/en_us/blogs/how-phishers-will-use-epsilon-data-against-you-041211
http://yro.slashdot.org/story/11/04/12/1634218/How-Attackers-Will-Use-Epsilon-Data-Against-You
One suggestion for creating such an account: run the word through Google to see how many hits it gets. The root word that I chose only had 110 hits (it's non-English), and when I added a suffix to it there were zero hits.
http://threatpost.com/en_us/blogs/how-phishers-will-use-epsilon-data-against-you-041211
http://yro.slashdot.org/story/11/04/12/1634218/How-Attackers-Will-Use-Epsilon-Data-Against-You