r/AskNetsec • u/Budget_Note4222 • 17h ago
Work how do you show risk reduction over time to justify your security program budget
budget cycle is coming up and i need to make the case for keeping our security program funded, ideally growing it. last cycle the cfo looked at my slide and asked "if we cut this in half, what breaks?" and i didn't have a clean answer that would land in that room. i still don't have one.
the stuff that's easy to measure isn't the stuff that matters. i can show vulns closed, MTTR trending down, phishing sim click rates dropping, all of it goes in the right direction on a slide. but none of it answers the question a cfo actually asks, which is: what would have happened if we hadn't spent this money and how much worse would it be.
that counterfactual problem is what gets me every time. you can't point to breaches that didn't happen. you can't quantify an incident that never occurred. so you end up arguing from activity metrics and hoping the room connects the dots between "we patched more crits faster" and "we are less likely to get hit" and that leap doesn't always land.
the closest i've come to something that holds up is showing attack surface shrinking over time, fewer known-exploitable vulns sitting on internet-facing assets, tracked over quarters not sprints. patching velocity and MTTR never survived the "so what" question in that room. exposure reduction at least maps to something real: this is what could have hurt us, and it's smaller than it was six months ago
for security leaders who've gotten budget approved on the strength of a risk reduction story: how did you frame it and what did you measure that survived the "what would have happened anyway" question?