Markus Mueller

Markus Mueller

About

Tagline
OT Cybersecurity Leader and Practitioner
Member since
02/23/2026
Bio

I am a passionate Operational Technology (OT) cybersecurity leader and practitioner. Throughout my career, I have worked tirelessly to develop secure and functional solutions that facilitate industrial operations. I believe in working collaboratively with teams to create the right mix of people, technology, and processes that enable organizations to secure and enhance their industrial environments. I bring my extensive experience and passion to every engagement, whether leading an executive incident response workshop, conducting an operational tabletop exercise, developing an OT program, or conducting architectural reviews and security assessments.

I have over 20 years of experience, primarily focused on OT, working across a wide range of industries, with a particular emphasis on utilities and manufacturing. On the utility generation side, I have experience with thermal, hydro, solar, and wind power. I have also worked on electric utility distribution and transmission systems. In addition, I have experience with water, wastewater, and gas distribution utilities. I have worked in various manufacturing and logistics sub-sectors, including industrial, pharmaceutical, consumer, and high-tech.

I am experienced in working with security frameworks such as IEC 62443/ISA, NIST, CIS, ISO, and SOC, as well as regulatory frameworks including GLBA, HIPAA, SOX, SEC, TSA SD, NIS2, and NERC CIP, with a major focus on organizations falling under NERC CIP. I have developed, managed, and executed NERC CIP programs and controls. I have experience interacting with multiple EROs, including WECC, TEXAS RE, RF, and MRO, and multiple ISOs, including ERCOT, CAISO, MISO, and PJM. Additionally, I have been involved in the NERC community, providing feedback and responses in multiple areas, including the initial NERC response to FERC Order 887 - INSM.

In addition to my technical knowledge and experience, I possess important soft skills, with a particular emphasis on a passion for success that I bring to each role. I take pride in my work and find joy in finding solutions to improve our industrial world. I have the ability to communicate effectively with operators, plant managers, business leaders, and executives, learning from everyone I work with.