Currently Being ModeratedSep 8, 2013 10:24 AM (in response to Tracy P)
I've experienced the same thing; some website will display supposedly "confidential" information - that's possibly already available online.
Many firms have access to this kind of information; it's just something of a shock to have the information displayed on your computer, for no rational reason. If there's good information to be gained from this, it's that most computer users aren't even aware that this kind of information is available to millions of users.
You can do things to limit this kind of access, but remember that things like "cookies" can also make more an easier shopping and browsing experience.