Dino Busalachi of Velta Technology talks to Dale about a 2021 security patch to DCOM that broke a number of ICS systems including Rockwell Automation and Siemens. Microsoft had a registry setting that disabled the patch and the incompatibility problem, but this ability to disable the patch goes away on 14 March 2023.

Of course this topic leads us down the patching in ICS rabbit hole, hopefully with some informed and helpful information.