Issue
You go to a Marketo form that has prefill enabled and see that it contains some other person's information.
Solution
Form prefill can display another person's information if a Marketo email sent to one person is then forwarded to someone else. Clicking on another person's tracked link cookies you with their information and causes it to prefill in the form. To correct this, clear the cache and cookies on your browser. If you would like to make sure this does not occur with your customers, please disable form prefill for the fields on your form. There is nothing wrong with the forms or landing pages themselves, it is simply a matter of another person's cookie being placed on the browser by the forwarded email tracking link.
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