The CISO and security ops will demand to be completely independent from corp IT, for legit reasons, as the security team needs to treat IT as potential insider threat actors with elevated privileges.
They will also demand the ability to push out updates everywhere at any time in response to real-time threats, and per the previous point they will not coordinate or even announce these changes with IT.
There has always been an implicit conflict between security and usability, because of the inherent nature of security deny policies, but they also inherently conflict with conservative change management policies such as IT slow rolling changes through lower environments on fixed schedules and operating with transparency
I always wondered: why should security ops not be a potential insider thread actor? In fact, if they were compromised, it would be even worse.
Do we need two different security ops that monitor each other? :)
So I guess 5 security OPS teams in different regions of the world, and they can all call a vote if one of the teams is now 'bad' :)
For many high privilege operations there are more segregation of duties in the act side of things - these can be down to plan, authorise, configure, activate, validate or some rollups of these. Another is dual control on the act side, since conspiracy is generally quite hard to do especially if it’s just for pocket-change. Different if it’s $$Billions of fungible cash of course at stake.
People often overcomplicate - simple do/check is often enough.
IMO there are no legit reasons except politics, empire building, NIH and toxic relationships for such a such a crazy state of affairs.
Technical people will make a recommendation, knowing it’s going to be ignored and that the decisions already been made.
So sure, IT gets to "decide" - between CrowdStrike, SentinalOne, or Palo Alto (and maybe a couple others). But they don't really have much choice, they can't use an OSS solution, or roll their own, or anything else. They have to pick one of a small number of existing solutions.
