I know when I fill out forms with address and email it will attempt to auto complete the rest of the information. Is it possible to include more hidden fields on the page in order to get more information with the auto complete than is visible to the user?
A real life example. I recently filed my taxes online which included my social and that made me think if this. Obviously a website should prevent saving of confidential info, but if those measures weren't in place could another site where I'm simply putting in my email secretly auto complete more info not visible like my social?