Microsegmentation (Noun) [Word Notes]
Cybersecurity

Hacking Humans

Microsegmentation (Noun) [Word Notes]

Hacking HumansDec 16, 2025

AI Summary

The episode defines microsegmentation as a zero‑trust security method that isolates individual application workloads, enabling granular protection for each. It highlights how this approach reduces lateral movement risks within networks and supports compliance by enforcing policy at the workload level. The host, Rick Howard, references insights from Illumio CTO PJ Kirner’s “Micro‑Segmentation Masterpieces” talk, underscoring the practical benefits and implementation considerations for modern security architectures.

Episode Description

Please enjoy this encore of Word Notes.

A zero trust security technique that isolates application workloads from each other, allowing each one to be protected individually.

CyberWire Glossary link: ⁠https://thecyberwire.com/glossary/microsegmentation⁠

Audio reference link: “⁠Micro-Segmentation Masterpieces⁠,” PJ Kirner, Illumio CTO and Co-Founder, Tech Field Day, YouTube, 13 December 2020.

Show Notes

Microsegmentation (noun)

January 8, 2026

Author: Rick Howard


A zero‑trust security technique that isolates application workloads from each other, allowing each one to be protected individually.

Glossary link: https://thecyberwire.com/glossary/microsegmentation

Audio reference: “Micro‑Segmentation Masterpieces,” PJ Kirner, Illumio CTO and Co‑Founder, Tech Field Day, YouTube, 13 December 2020. https://www.youtube.com/watch?v=tJaWZmW_gD4

Show notes & transcript: https://thecyberwire.com/podcasts/word-notes/113/notes

https://thecyberwire.com/podcasts/word-notes/113/transcript


Rick Howard is the CSO of N2K and the Chief Analyst and Senior Fellow at N2K Cyber (formerly CyberWire).

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