Effective OT penetration testing isn't just about finding vulnerabilities, it's about building trust.
In this episode of Protect It All, host Aaron Crow is joined by Oren Niskin and Reynaldo Gonzalez for an engaging discussion on the evolving role of penetration testing in operational technology (OT) environments.
Drawing from years of experience in industrial operations, IT, and OT cybersecurity, Oren and Reynaldo explain why successful OT security assessments require far more than technical expertise. They explore how trust, communication, and collaboration help bridge the gap between security teams and operations, making penetration testing a valuable business tool rather than something to fear.
The conversation also highlights the importance of diverse career paths, hands-on learning, and mentoring the next generation of cybersecurity professionals. From network segmentation and risk communication to creating realistic lab environments, this episode offers practical lessons for anyone responsible for securing critical infrastructure.
Why trust is essential for successful OT penetration testingHow IT and operational experience strengthen OT security teamsThe value of network segmentation in reducing cyber riskWhy "doing nothing" is no longer an acceptable cybersecurity strategyHow organizations can bridge the gap between safety, operations, and securityPractical ways to develop the next generation of OT cybersecurity professionals07:00 Oren's technology and security approach
15:04 Discussing network security measures
19:16 Building Trust in Business Relationships
26:17 Understanding and planning security architecture
30:16 Network management and rule assessment
33:39 Managing and Assessing Tool Overload
38:39 Analyzing tool overlap and complementarity
48:41 Building a trusting team culture
49:48 Encouraging Open Communication
56:34 Getting into cybersecurity without IT experience
01:04:56 Entry-level ICS training courses
Whether you're an OT engineer, penetration tester, security leader, or just beginning your cybersecurity journey, this episode delivers practical insights into protecting industrial environments while building stronger relationships across teams.
Tune in to discover why the most successful OT penetration tests don't just identify vulnerabilities they build trust, strengthen teams, and improve security for the long term.
Oren Niskin is Principal OT Security Engineer at GuidePoint Security. His 20-year arc runs from the US Navy as a Nuclear Electrician's Mate, to Electronics Technician on offshore drilling rigs, to office OT/IT management, to OT cybersecurity consulting at EY, and now into OT cyber engineering at GuidePoint. He also runs Packets Or It Didn't Happen, a YouTube livestream where he builds a factory-realistic PLC and HMI training kit on camera (the open-source PLC Trainer Kit), aimed at helping newcomers get hands-on with OT for under $500.
Link to connect Oren Niskin:
LinkedIn: https://www.linkedin.com/in/orenniskin/
YouTube: https://www.youtube.com/@PacketsOrItDidntHappen
PLC Trainer Kit (GitHub): https://github.com/oniskin/PLC-Trainer-Kit
LinkedIn Group: https://www.linkedin.com/groups/17708001/
Reynaldo Gonzalez is a recognized cybersecurity thought leader with 18+ years of experience helping organizations strengthen cyber resilience and secure critical infrastructure. His expertise spans cybersecurity strategy, IT/OT security, AI security, risk management, and digital transformation, complemented by a passion for education, innovation, and industry collaboration.
Link to connect Reynaldo Gonzalez:
LinkedIn: https://www.linkedin.com/in/reynaldoglz/
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