Kappy,
That is well known. Description of 2015-006 update, however, does not explicitly state that prior updates are included, nor does it include their content as part of itself.
My question was - is there a way to display explicitly all Security Updates that have been actually installed on my system, either directly by me or indirectly as part of the latest update that you assert is cumulative?
On my Mac Mini, running 10.8.5,, listed under System Information -> Software -> Installations are only those updates that I have initiated. As I stated in my original post above, in 2015, those are 2015-002 and 2015-006. Is there any way to get a confirmation from the system that the ones I did not install directly (i.e., 2015-001, -003, -004 and -005) have actually been installed as part of my 2015-006 installation?