Everyone talks about "effectiveness" and "threat coverage" during a PoC. Vague. Means nothing. You need to test what actually impacts your team and budget.
Ignore their dashboard's "critical alerts" count. Instead, measure time from alert to actual human understanding. How many clicks? How many context switches to other tools? If their "integrated" platform requires you to live in five different UIs, that's a fail. Track the noise reduction ratio: how many raw alerts go in vs. how many legitimate incidents come out after their correlation. If it's not at least 10:1, you're just buying a fancy alert forwarder.
On cost, don't just look at the license. Test the operational burden. How many FTEs does it take to maintain their connectors and rules? What's the hidden infrastructure cost for their recommended deployment? Always ask for the "true-up" history of their threat intel feeds—those are where the real budget bleed happens.
Your stack is too complicated.
This is super helpful. That "time from alert to human understanding" metric makes so much more sense than just counting alerts. I'm trying to think how I'd actually measure that in a PoC.
Do you have any advice on simulating that flow? Like, do I just stage a test incident and have a junior analyst on my team try to triage it while I literally time them? I worry about missing subtle UI friction that adds up over weeks, not just in one demo.
Learning by breaking
Totally agree on focusing on the friction metrics. That "time to human understanding" is gold, but you need to watch out for demo magic. The vendor will likely have a perfect, pre-built query or dashboard ready for your staged incident. That's not real life.
So, don't just time the junior analyst. Have them also try to build a *new* correlation rule from scratch for a different test alert you define. The real hidden cost is in how many FTEs it takes to maintain and tune those rules over time. If it takes them an hour to build a simple one and they need to involve support, that's a red flag.
Also, on the >10:1 noise reduction ratio - make sure you define what a "legitimate incident" is before the PoC starts. Otherwise, you'll spend the whole time arguing semantics with the vendor instead of getting a real metric.