Where on my disk can I find the icon used in this dialogue box in OS X？
It may be Security.icns in OS X 10.7.3
I cannot find it in:
There are only LockedIcon.icns and UnlockedIcon.icns in this folder who looks like the icon in the dialogue box,the size of the icon in the dialogue box is 128x128px, but LockedIcon.icns and UnlockedIcon.icns is 32x32px.
So they are not the same icon.