Ahh, the wonders of modern technology...
According to NYULocal.com, Dakota Fanning is allegedly attending NYU this fall. How were they able to tell? After NYU switched to Gmail, it became possible to search through all school email addresses by typing a name in the contacts section.
NYUlocal.com has more:
As we explained, our email addresses are now fully public to anyone with an NYU account. The new autocomplete directory in the ‘to’ box and the gchat search box means you can find any member of the NYU community using their first and last names. Want to gchat Spike Lee to see what he thinks of your Sight and Sound project? Now you can. We are not suggesting you should.
Fanning was seen touring campus last year, so this wasn't utter rocket science, but wow, no one is safe from the hand of Gmail! A moral for our times.
See the screen shots here.