Encrypt passwords on forms

Hi,

I've used the members app to create a members area, but also to collect various bits of info from the users I'm using a form for the registration, however, as this registration from is being sent to both the members app and the forms app its collecting everything including the members password (in plain text).

Is there a way to hide these passwords from the Forms app? I'm sure I'm over looking something pretty simple.

Thanks!