Justin Searle
Senior InstructorDirector of ICS Security at InGuardians, Inc.
Specialities
Industrial Control Systems Security

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As the Director of ICS Security at InGuardians, Justin specializes in ICS security architecture design and penetration testing. He led the Smart Grid Security Architecture group in creating the NIST Interagency Report 7628 and has played key roles in the Advanced Security Acceleration Project for the Smart Grid (ASAP-SG), National Electric Sector Cybersecurity Organization Resources (NESCOR), and Smart Grid Interoperability Panel (SGIP). Justin is the owner of ControlThings LLC, a member of the SANS faculty, and an instructor at BlackHat. He has authored and taught numerous courses such as ICS410: ICS/SCADA Security Essentials, Assessing and Exploiting Control Systems and IIoT, Assessing and Exploiting Web Applications with SamuraiWTF, and SEC542: Web App Penetration Testing and Ethical Hacking. Justin also presents on a range of cybersecurity topics at leading security conferences across the globe.
Justin had his first professional experience with industrial control systems before he even graduated from college. While in school, he secured a full-time job working for an engineering firm building control cabinets for water treatment facilities. He graduated from Brigham Young University with a Bachelor of Science in Technology Teacher Education with an emphasis on Electrical Engineering & Computer Science. Justin gained industry experience in architecture, consulting, and security assessments in almost every industrial vertical there is, including electricity, nuclear, oil and gas, water, food manufacturing, automotive, aerospace, pharmaceuticals, chemicals, satellite communications, shipping yards, trains, subways, mining operations, micro-grids, and weapons systems. Career highlights include leading the Smart Grid Security Architecture group in creating NIST Interagency Report 7628 and playing key roles in the Advanced Security Acceleration Project for the Smart Grid (ASAP-SG), National Electric Sector Cybersecurity Organization Resources (NESCOR), and Smart Grid Interoperability Panel (SGIP). Justin also holds a Master’s in Business Administration from American Intercontinental University with an emphasis on International Business & Information Systems.
Justin caught the eye of SANS instructors in attendance when he was teaching his Assessing and Exploiting Web Applicatinos with SamuraiWTF course at the OWASP and BlackHat conferences. Justin had taken many SANS courses and been impressed with the faculty and their sense of mission, so it was an easy "yes" when the SANS instructors approached him to join the SANS team.
Justin brings enthusiasm to his teaching style and makes sure to keep the lessons anchored in reality. He sees connecting cybersecurity principles to real-life examples and their technical underpinnings as his most valuable contribution to students. While concepts and principles provide basic insight, they can only take the learning experience so far without connecting them to reality, particularly in the ICS field.
"ICS provides all the same technologies we find in normal IT companies but adds a plethora of additional technologies you can't find in IT," he explains. "It's like a never-ending playground of things to learn and explore without ever growing bored."
Justin's students attest to his teaching skills and dedication.
"You can tell he is passionate about contributing to cybersecurity education, especially in the ICS space," said a student from Justin's ICS410 course. "He explains his material very well and offers many real-world scenarios to bolster his point on each aspect of cybersecurity. The amount of resources he has dedicated his time to provide and keep current is amazing. Not just tools and documents, but communities to share knowledge and dissent."
Justin recognizes that one of the biggest challenges for those getting into ICS cybersecurity is gaining enough experience to get hired. Once you are working as an ICS security professional, the bigger challenge is convincing management to grow your team and deciding which defenses to implement to best protect your systems. Justin takes pride that students can immediately take what they learn in his class back to their team and put it into practice right away. Justin has developed many free assessment tools for the ICS community, including those related to serial devices, SPI, Velocio PLCs, Modbus, and I2C, all of which he shares in his courses.
When Justin isn’t being invited to teach a custom class for the Dalai Lama’s IT Team (true story!), he’s often presenting at top international security conferences around the globe such as BlackHat, DEFCON, OWASP, (CS)2AI, Nullcon, Brucon, Toorcon, CanSecWest, PacSec, Hardwear.io, and AusCERT. He is also a faculty member of the SANS Technology Institute, an NSA Center of Academic Excellence in Cyber Defense and multiple winner of the National Cyber League competition. Justin works hard, but he knows how to play hard, too! He’s a licensed falconer (hunts with eagles, hawks, falcons, and owls), a SCUBA dive master, HAM radio operator, helicopter pilot, rock climbing instructor, gymnastics coach, competition shooter, gardener, cook, father, husband… and one of the nicest people you’ll ever meet!
Justin Searle has a fantastic approach in ICS410. He is extremely knowledgeable in the ICS field, hacking, and defense, and he goes out of his way to ensure the content is understood!
Justin has an excellent teaching style and is good at explaining complex topics logically.
Conceptualizing safety within ICS/SCADA is easier to understand with the numerous examples Justin provides. His ability to visually show where the gotchas will appear gave me techniques to repair our SCADA network.
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Explore content featuring this instructor’s insights and expertise.
In this session, we dive into the first two pillars of the SANS Top 5 Critical ICS Controls: ICS Incident Response and Defensible Architecture.

Join Justin Searle, one of the leading experts in the industry and one of our Senior Instructors at SANS, for the first in a series of webcasts that will walk you through the most challenging aspects of launching a cybersecurity program in OT/ICS.

There are many ways to create a security perimeter around your IT infrastructure. This presentation will compare and contrast various strategies companies take when building these perimeters and discuss the benefits and disadvantages of each.

In this webcast, Justin Searle—SANS Senior Instructor and author of the ICS410: ICS/SCADA Security Essentials course—shares practical configurations that can revolutionize your defensible architecture and strengthen your security posture.

Penetration tests and red team exercises in OT environments are distinct from their IT counterparts. Due to the increased risks associated with OT, it is essential to exercise a much greater degree of caution. This presentation will offer guidance on appropriate actions to take in OT production environments and advise on how to match the level of risk in your test to that of the target environment.

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