How Digital Work Instructions Help Manufacturers Close the Labor Gap
February 4, 2026
How Digital Work Instructions Help Manufacturers Close the Labor Gap
February 4, 2026

Trust Me – It's Air-Gapped

The Podcast

Trust Me, It’s Air-Gapped cuts through OT cybersecurity buzzwords with real, plant-floor insights from Scott Christensen and Tom Walker of GrayMatter.

Listen Now
 

Trust me, it's air-gapped.

Scott and Tom explore how risk-averse operational technology networks are built, and how assumptions like “we’re air-gapped” fall apart in practice.

Drawing on hundreds of in-the-field projects, they tackle real OT cyber challenges such as outdated asset maps, flat networks, undocumented data flows, cyber insurance and the disconnect between IT and OT.

This podcast is for engineers, operators and leaders who want straight talk about cybersecurity.

In the first episode of Trust Me, It’s Air-Gapped, Scott Christensen and Tom Walker take on one of the most common assumptions in OT cybersecurity: that industrial systems can be truly isolated.

Based on real assessments across critical infrastructure and manufacturing environments, they break down how air gaps are unintentionally defeated by contractor laptops, Wi-Fi hotspots, cloud-connected devices, remote data collection and well-intentioned IT integrations.
 
Scott and Tom explain why “monitoring only” connections still matter, how undocumented data flows create hidden risk and why PLCs and control PCs often bridge IT and OT without anyone realizing it.

They discuss how increased scrutiny from cyber insurers and IT teams is forcing organizations to better understand their OT environments, and why documenting data flows and connectivity is now critical to managing both risk and insurance costs .

If you think your environment is air-gapped, episode one explains why it probably isn’t, and what to do about it.

 
 

If you think your environment is air-gapped, episode one explains why it probably isn’t, and what to do about it.

 
 
 

Episode Library