I had this happen to me on Google. I opened up Google Reader, and poof, I was staring at someone else's set of feeds, but I could also navigate to gmail.com and

I had this happen to me on Google. I opened up Google Reader, and poof, I was staring at someone else's set of feeds, but I could also navigate to gmail.com and access their email. I wasn't able to reproduce it after logging out. https://twitter.com/anantn/status/81128281197387776 https://twitter.com/anantn/status/81128281197387776 The most convincing explanation I received was that it was a cookie collision. Very small chance, but still possible...