Blog — OT Cybersecurity Insights

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IEC 62443 Security Levels Are Not a Number

Most OT programs set a target security level and stop there. The standard asks for three levels, and the gap between two of them is where the real work is.

FundamentalsSeptember 13, 2026 · 1 min read

SIEM vs. SOC in OT: Why the Distinction Decides Your Industrial Risk
A SIEM is a technology; a SOC is a function. Learn why confusing the two creates real risk in industrial OT environments, and what operators should demand instead.
OT SecurityMay 28, 2026 · 2 min read
The Purdue Model in Practice: What OT Network Segmentation Actually Looks Like on a Plant Floor
Everyone references the Purdue Model. Few organizations implement it the way the standard intends. Here's what each level actually contains in a working industrial environment — and where most segmentation projects go wrong.
FundamentalsApril 20, 2026 · 7 min read
IT vs OT Security: Why Your Enterprise Firewall Isn't Enough
Most industrial operators assume the security stack that protects the corporate network will extend naturally to the plant floor. It won't — and the assumptions behind enterprise security are the exact reason it fails in OT environments.
FundamentalsApril 17, 2026 · 4 min read

IEC 62443 Security Levels Are Not a Number

SIEM vs. SOC in OT: Why the Distinction Decides Your Industrial Risk

The Purdue Model in Practice: What OT Network Segmentation Actually Looks Like on a Plant Floor

IT vs OT Security: Why Your Enterprise Firewall Isn't Enough

IEC 62443 Security Levels Are Not a Number

SIEM vs. SOC in OT: Why the Distinction Decides Your Industrial Risk

The Purdue Model in Practice: What OT Network Segmentation Actually Looks Like on a Plant Floor

IT vs OT Security: Why Your Enterprise Firewall Isn't Enough