Who's Online error icon

Hello

Is there any chance there could be a little say red error icon in who's online to show when someone is trying to access something but are being stopped from doing so.

For example, we have a private section and one of my members was panicking during the night because she could see a bunch of guests trying to view the private forum and thought it was no longer private.

Plus this also helps to show if there is a problem or an easy way to show things are working as they should be.

Thanks