Possible security issue when locking screen

I am using an iMac with OS X 10.5.5. I have set up my system so that every time I switch on my iMac I have to login and I can also lock the screen.
I am also using iTunes 8.0.1 (11). I use GimmeSome Tune version 4.2 (2945) to automatically fetch lyrics and cover artwork. I leave the lyrics window in GimmeSome Tune open all the time. When I lock the screen the screen turns dark but the lyrics window stays visible. From the tab on the lyrics window of GimmeSome Tune, I can select fetch lyrics again. When I do that GimmeSome Tune fetches the lyrics and updates the current track in iTunes with the lyrics.
Technically GimmeSome Tune is updating a file from a manual user intervention when the iMac is locked and I am not logged in.
My Concern:
I don't mind it when lyrics for a track is updated this way but using a similar way a confidential information on the iMac can be displayed and updated even though the iMac is locked.
Message was edited by: McFly3

That's the thing. The password is activated but still you can have Gimmesome tune update a track with he lyrics. You can try this out:
Start iTunes and start GimmeSome Tune (of course some track is playing)
Open the lyrics window from GimmeSome Tune
Lock the screen through Screensaver or keychain
Move the mouse and you will see the login screen and the GimmeSome Tune lyrics is there also.
Now from GimmeSome Tune lyrics window you can get a drop down menu, located on the lower left corner, and ask it to download lyrics to your track.
This is the problem I see. OSX should not allow this to happen when you are not logged in and the screen is locked.

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Possible security issue when locking screen

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