Autofill birthday fields in Safari

The Safari web browser can autofill form fields from your personal address book card. I’ve had very good experiences with this feature. But today I was creeped out a little on my brightkite profile as I saw my birthday even though I had not provided it anywhere. It took me a moment to realize that Safari had autofilled my birthday. So I quickly came up with an evil idea. Would it be possible to abuse that feature to automatically collect birthdays from users on say a signup form? ...

April 9, 2009 · Patrice Neff