Inverted Podcast #2: The Invisible Line in Security Metrics

Most security success is invisible until something goes wrong. In Inverted Podcast #2, the hosts unpack the invisible line: the true level of badness in your systems versus the slice you detect and report.

They walk through what it means when the line goes up or down, how leadership should interpret changes, detection versus protection goals, estimating what you cannot see, aligning measurements across teams, and whether bad actors are gaming your numbers. The episode closes with the Have I Been Pwned phishing incident and how not to waste a good crisis.

Listen on Spotify

About this episode

A hosts-led deep dive into measuring badness when most of the harm you care about is hard to observe. Jeroen, Dana, Dario, and Tom discuss how leadership should read the line, how attackers can distort metrics, and what a public incident teaches about crisis response.

Key takeaways

The invisible line is the true abuse or failure rate; the visible line is only what your detections catch.
A rising visible line can mean better detection, more attacks, or both. Do not celebrate or panic without context.
A falling line can mean fewer attacks, weaker detections, or attackers adapting. Validate before claiming a win.
Detection and protection goals pull differently; be explicit about which you optimize.
Attackers influence your metrics. Design measurements that are hard to game.
Public incidents are teaching moments: improve defenses without throwing stones from a glass house.

Topics covered

Defining the invisible line of badness
Interpreting rises and falls in abuse metrics
Detection vs protection goals
Estimating and aligning measurements
Bad actor influence on reporting
Have I Been Pwned phishing lesson and crisis response

Chapters

00:00 Introductions
00:47 What is the Invisible Line?
01:45 Can we read into the line going up (catching more badness)?
03:13 What about the line going down (catching less badness)?
05:36 How should leadership interpret changes in the line?
09:14 Detection vs Protection – what is your goal?
10:48 The need for robust detections
12:52 Difference between the invisible line and visible line
13:51 How to estimate the invisible line?
16:35 How do you align your measurements?
20:11 Are you evaluating the bad actor influence on your measurements?
21:35 How much effort are you putting into reporting?
26:04 What’s in the news (Have I Been Pwned attack)
35:13 Don’t throw stones in a glass house
37:12 Never waste a good crisis

FAQ

What is the invisible line?

It is the true amount of badness or abuse in a system, much of which you never fully observe. Your dashboards show a visible slice shaped by detections, sampling, and reporting choices.

Why can a falling abuse metric be misleading?

Attackers may have shifted channels, detections may have degraded, or coverage may have shrunk. Without validation, a quieter chart can hide more harm, not less.

How does this connect to inverted products?

Inverted products are judged by damage avoided. The invisible line is how you reason about harm you cannot always count, which is core to inverted metrics and leadership communication.

Related on Inverted PM

Connect with the hosts and guests on the video or on LinkedIn to continue the conversation.

🎧 Find the Inverted Podcast on LinkedIn, Spotify, YouTube, Amazon Music/Audible, iHeartRadio, or invertedpm.com.

Explore more

Browse all Inverted Podcast episodes, read the blog, or meet the hosts.