Data Diodes & Remote Access: How Industrial Systems Stay Secure in a Connected World

Can your plant stay connected and completely secure?

In this episode of Protect It All, host Aaron Crow teams up with Lior Frenkel, CEO and co-founder of Waterfall Security, to explore how industries are rethinking OT cybersecurity in the age of ransomware and AI-powered attacks. Together, they break down why traditional firewalls can’t fully protect industrial control systems and how unidirectional gateways (data diodes) are redefining safety for everything from nuclear plants to casinos.

You’ll learn:

What data diodes really are and how they physically block inbound attacks.
Why “air gaps” are no longer enough for modern connected environments.
How remote-access tools like HERA are enabling secure operations.
Real-world stories of industries upgrading defenses without losing efficiency.

Whether you manage critical infrastructure, handle OT security, or just want to understand how cyber-physical systems stay safe, this episode will give you a new appreciation for data flow, digital risk, and resilience.

Tune in to discover the future of secure connectivity - only on Protect It All.

Key Moments:

07:46 Balancing Security and Operational Data

16:25 "One-Way Data Flow Explained"

22:19 "Air Gap for Data Transfer"

27:44 Increasing Awareness of Security Threats

32:05 Challenges of Power Plant Management

35:29 Global Risks Require Local Understanding

44:44 "OT Security and Zero Trust"

48:24 "Remote Access vs On-Site Work"

55:48 "HERA: TPM-Powered Remote Access"

58:43 Encrypted Remote Access Streaming

01:05:32 Secure Remote Control for Infrastructure

01:13:00 "Solving Critical Incident Response Gaps"

About the Guest :
Lior Frenkel is a globally recognized OT cybersecurity leader and the CEO/co-founder of Waterfall Security Solutions, the company behind the industry-standard Unidirectional Security Gateways protecting critical infrastructure worldwide. With 25+ years of cybersecurity expertise, multiple patents, and leadership roles across Israel’s top technology, industrial, and export organizations, Lior is a key voice shaping the future of industrial cyber defense and national cyber strategy.

How to connect Lior:

Website: https://waterfall-security.com/
LinkdIn: https://www.linkedin.com/in/lior-frenkel-91534/