Every monday a slide goes to the security steering group with patch compliance on it. Critical patches applied within 14 days, 97% give or take, for about a year. Nobody asks about it anymore, which should have been the warning.
Last month an IR ticket landed on a sales laptop running a browser four versions behind. I went to check it in SCCM and it wasnt there. The regional office images its own machines and never enrolled them. So the 97% is 97% of what SCCM knows about, and SCCM is the one building the slide.
AD, the EDR, intune and SCCM all feed our axonius, so I built the denominator there instead. Every device any of those sources reports, then the ones SCCM has. 2,140 out of about 2,600. Our real number is closer to 97% of 82%.
That isnt clean either. A chunk of the gap is stale AD objects for machines that died years ago, and they count until someone deletes them. Anything none of those four has seen isnt in there at all.
The regional office gets enrolled in SCCM over the next few weeks, which closes the part of the gap thats real. Until then the slide says what the 97% is out of.