Insider Risk Management
LEADERSHIP TEAM

Marshall Heilman is the Chief Executive Officer for DTEX Systems, the global leader for insider risk management. Marshall has more than 20 years of experience in cyber security (in startup and large public organizations), holding executive leadership and highly technical roles at Mandiant and Google. He is an internationally recognized cyber security expert, regularly speaking at industry events. He also advises startups and growth companies as an adviser to multiple venture capital firms.

Marshall joined DTEX Systems from Mandiant (now part of Google Cloud) where he spent the past 17 years focused on protecting governments and companies around the globe from nation state and criminal hackers. His 17-year career spanned catching overseas hackers as an incident responder and culminated as the Global Chief Technology Officer, where he oversaw the company’s strategic technical direction.

Prior to being Global CTO, he served as the Executive Vice President for Advanced Practices and General Manager for Mandiant’s Managed Defense business. In this capacity he had responsibility for all managed detection and response (MDR) services, ensuring front line threat intelligence was integrated throughout the company, and malware analysis capabilities. He also served as Consulting VP and CTO with global responsibility for incident response, red/blue team engagements, and strategic consulting. He has led responses to hundreds of damaging and well-known public breaches.

Before joining Mandiant in 2006, Marshall served in the United States Marine Corps for over eight years, specializing in information security and computer networking. Marshall holds an MBA from ASU and a B.S. in Computer and Information Science from UMGC.

Mohan Koo is widely recognised as a thought leader in cybersecurity, with a specific passion for bridging the gap between security and privacy. Mohan brings 20 years of experience building a global cybersecurity business from the ground up, moving from Adelaide to London to Silicon Valley. Backed by top tier Silicon Valley Venture Capital, DTEX has been chosen as the core Insider Risk Management platform by Fortune 500, Government agencies and Defence organisations. Mohan was recognised as Australian Entrepreneur of the Year in 2021 by the Pearcey Foundation, and also received the American Chamber of Commerce (AmCham) ‘Digital Economy’ Award for strengthening economic ties between Australia and the US in 2022.

As DTEX Systems’ Chief Revenue Officer, Denis Eversen leads the organization’s worldwide sales, channel and partnership functions with strategy and operational oversight.

Prior to joining DTEX, Denis Eversen held senior sales and operational executive roles at several leading companies in the security, storage and networking spaces, including Fidelis Cybersecurity, Cyphort, and Forcepoint, helping each organization achieve record growth and revenue recognition. As SVP of Americas Sales with Fidelis Cybersecurity, Denis executed innovative sales and partnership strategies that delivered record adoption of Fidelis’ threat detection and response product and services portfolio across the Americas while also driving expansion in Latin America and Canada.

Prior to joining Fidelis Cybersecurity in 2018, Denis led Cyphort’s worldwide sales efforts up to and through Cyphort’s acquisition by Juniper Networks as Executive Vice President. During his tenure with Cyphort and Juniper, he ran Juniper’s global security sales team to recognize revenues of $400M in close partnership with the organization’s extensive partner ecosystem.

Before joining Cyphort, Denis was VP of the East at Forcepoint, where he was instrumental in helping the organization recognize triple-digit product and services sales growth following the acquisition of Websense. Earlier in his career, Denis held various sales leadership positions at a number of world-class companies and startups such as Brocade, McAfee, DeCru, NetApp, Check Point Software, and Cisco, with a track record of consistent overachievement and success for his sales teams. Denis holds a Bachelor of Science Degree from Saint Francis University of Pennsylvania.

Rajan Koo is the CTO and head of DTEX’s Insider Investigations & Intelligence (i3) team. He is responsible for developing, implementing, and operating technologies to prevent insider risks from becoming insider threats. Rajan has played a pivotal role in establishing DTEX’s privacy-first approach to insider risk management. He has also led several high-profile insider threat investigations that have resulted in successful prosecutions and exonerations.

As a Chartered Professional Engineer with over 20 years of cybersecurity and insider risk experience, Rajan has been awarded patents for his work in R&D (including DTEX’s unique pseudonymization features) and has led technical reviews for multi-billion dollar industrial automation projects.

Dave Salverson is a finance and operations executive with more than 25 years of leadership experience developing finance teams, systems, and processes at high-growth companies. As Chief Financial Officer at DTEX Systems, Dave is responsible for developing the financial infrastructure needed to support and sustain DTEX’s growth trajectory as the company continues to solidify its position as the global leader for insider risk management.

Prior to joining DTEX, Salverson held the role of Chief Financial Officer at Hazelcast. He has also held leadership roles at Shape Security, Ruckus Networks, and Brocade. During his tenure as Vice President of Finance at Shape Security, Dave was integral in scaling the company from $20M ARR to $80M, positioning it to be acquired by F5 Networks for $1B+ in January 2020. Dave’s expertise includes building teams and processes in emerging businesses, where organizational leadership, risk mitigation, M&A, equity & debt financing, and technology implementation are essential to the company’s success.

As Vice President of Marketing at DTEX, Jessica Ray leads all marketing initiatives with a rigorous focus on driving business growth and amplifying the company’s global market presence. With over a decade of experience in tech marketing, primarily in cybersecurity, she brings a wealth of expertise in top-of-funnel strategies that have consistently enhanced brand awareness and accelerated customer acquisition.

Formerly the Vice President of Marketing at Shift5, Jessica has held leadership roles in marketing at Tanium and Armis, in addition to her work as an independent consultant for various high-tech clients. At Armis, her marketing team’s strategies contributed to over one-third of the business pipeline, aiding the company’s growth and its eventual $1 billion acquisition by Insight Partners and CapitalG in 2020.

Jessica’s career began in the corridors of U.S. Embassies abroad, where she attained her a top-secret clearance. These early experiences helped to define her professional trajectory and fueled her commitment to work for companies with a strong, purpose-driven mission to secure the ever-evolving digital landscape.

Chris Harris is the Senior Vice President, United States Public Sector at DTEX Systems, responsible for all aspects of the Public Sector Go-To-Market to include sales, channel, partnerships, government affairs, strategy and operational oversight.

Prior to joining DTEX, Chris led the Department of Defense (DoD) & Intelligence Community (IC) sales team at Mandiant (acquired by Google in September 2022), which was the highest performing and revenue generating regional sales team in the company, and ultimately reached a $41M ARR, $18M Consulting Services book of business. Before stepping into sales leadership, Chris was responsible for leading and growing the Navy & Marine Corps business at FireEye & Mandiant. Earlier in his career, he held an individual contributing DoD & IC sales role at Value-Added Reseller (VAR) PCM-G (now Insight) and served in the Navy for almost six years as a Surface Warfare Officer on USS Fort McHenry (LSD 43) and at Naval Beach Group Two. He has a proven, consistent track record of overachievement and success in both his sales and military careers.

Chris holds a Bachelor of Science Degree from the United States Naval Academy and a Master of Science Degree in Management, Strategy and Leadership from Michigan State University.

Jennifer Moll is the VP of Strategic Programs for DTEX Systems, the global leader for insider risk management. Jennifer has more than 20 years of experience in forensics and cybersecurity across consulting firms and software companies. She is passionate about working with executive teams to refine and execute on their strategy.

Prior to joining DTEX Systems, Jennifer worked at Axio Global Inc, a cyber risk management SaaS company, PricewaterhouseCoopers in the US and UK, Deloitte in the UK, and The Risk Advisory Group in the UK and Russia. At PwC US, Jennifer helped to establish and run the Financial Crimes Unit, combining subject matter experts from anti-fraud, corruption, money laundering and cyber disciplines and then helped to create the unified cybersecurity and privacy practice. She has launched new products, standardized methodologies, led new market entries, and managed complex multi-national engagements.

Jennifer holds a Master of Philosophy in International Relations from the University of Cambridge and a BA in International Studies and Russian Language & Literature from Dickinson College. She is a Fulbright Scholar and is currently studying in the Chief Strategy Officer certificate program at The Wharton School of the University of Pennsylvania.