Security practice

Not sure if this is due to an Internet Explorer security setting or KidCheck programming.

When I have a check-in session open and click close, the window that pops up (used for fast switching templates or closing the session) has the last administrators email address filled in.

If this can be corrected with KidCheck programming I'd like to suggest that the login field automatically blank out (rather than maintaining the administrators email address). That would remove half of the information that someone with malicous intent has to gain access to the system.