Leadership

Meet the Team

AppGate brings together executives, thought leaders, and technology innovators from the cybersecurity industry.


Barry Field - CEO

Barry Field

CEO

Christopher W. Day - SVP & GM, Immunity

Christopher W. Day

SVP & GM, Immunity

Gregory J. Touhill - President, AppGate Federal

Gregory J. Touhill

President, AppGate Federal

Jeff Nord - SVP, Operations

Jeff Nord

SVP, Operations

Julie Preiss - SVP, Marketing

Julie Preiss

SVP, Marketing

Kurt Glazemakers - SVP, Engineering

Kurt Glazemakers

SVP, Engineering

Barry Field
CEO

Barry Field brings extensive experience as a sales executive leading successful IT infrastructure and software-enabled technology sales organizations. Field previously served as CEO of Cryptzone, where he led the strategic vision, product development, international growth and expansion into new markets.

Field served in positions of increasing seniority at Terremark from 2007 until 2013, most recently as SVP of Global Sales. In that role, he was responsible for managing the global sales organization for the cloud, data center and managed security businesses. Verizon/Terremark’s total revenues at the time of Mr. Field’s departure exceeded $1.5 billion.

Since March 2013, Field has served as a Partner of Medina Capital with a focus on implementing and improving portfolio company enterprise sales and go-to-market strategies that drive revenue and increase business development through various channels.

Prior to joining Terremark, Field served in multiple sales leadership roles for Data Return, a managed services provider that was ultimately acquired by Terremark. Field’s early career included roles as a sales representative with iKnowledge in the Boston area, and as a District Sales Manager and Sales Representative with Wallace Computer Services in the New York City area. Field received his bachelor’s in Marketing from Fairfield University.

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Barry Field - CEO
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Barry Field
CEO

Barry Field brings extensive experience as a sales executive leading successful IT infrastructure and software-enabled technology sales organizations. Field previously served as CEO of Cryptzone, where he led the strategic vision, product development, international growth and expansion into new markets.

Field served in positions of increasing seniority at Terremark from 2007 until 2013, most recently as SVP of Global Sales. In that role, he was responsible for managing the global sales organization for the cloud, data center and managed security businesses. Verizon/Terremark’s total revenues at the time of Mr. Field’s departure exceeded $1.5 billion.

Since March 2013, Field has served as a Partner of Medina Capital with a focus on implementing and improving portfolio company enterprise sales and go-to-market strategies that drive revenue and increase business development through various channels.

Prior to joining Terremark, Field served in multiple sales leadership roles for Data Return, a managed services provider that was ultimately acquired by Terremark. Field’s early career included roles as a sales representative with iKnowledge in the Boston area, and as a District Sales Manager and Sales Representative with Wallace Computer Services in the New York City area. Field received his bachelor’s in Marketing from Fairfield University.

Barry Field - CEO
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Christopher W. Day
SVP & GM, Immunity

Prior to AppGate, Christopher Day was Chief Information Security Officer for Invincea, a next-generation endpoint security and anti-malware software company acquired by Sophos, Ltd in 2017. Before Invincea, Day was CTO for Packet Forensics and its subsidiaries that provide advanced cyber security products and large-scale threat and commercial intelligence services for government and the private sector.

Prior to Packet Forensics, Day was Chief Security Architect for Terremark, where he started the information security practice, including a professional services group and a managed security services operations center. After Terremark was acquired by Verizon in 2011 he was responsible for leading the Advanced Threat Intelligence and Mitigation Services team in the commercial and government sectors as well as the Verizon Terremark classified program delivery teams. He also led an advanced information security research and development team.

In March 2013, Day was appointed to the Defense Science Board, which provides guidance to the Secretary of Defense and other Department of Defense leaders on technical and strategic matters impacting national security. The White House National Security Council invited Day to participate as Control Staff for the 2012 National Level Exercise that focused heavily on a major cybersecurity crisis. He also served on the President’s National Security Telecommunications Advisory Committee’s (NSTAC) Secure Government Communications Subcommittee.

Day regularly speaks and lectures on cybersecurity topics and is a contributing author for a number of books and articles. He authored and co-authored four patents in cybersecurity and is a Fellow of the American Academy of Forensic Sciences. Day graduated from the University of Miami with a BS Magna Cum Laude in Physics and Mathematics and is member of Phi Beta Kappa.

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Christopher W. Day - SVP & GM, Immunity
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Christopher W. Day
SVP & GM, Immunity

Prior to AppGate, Christopher Day was Chief Information Security Officer for Invincea, a next-generation endpoint security and anti-malware software company acquired by Sophos, Ltd in 2017. Before Invincea, Day was CTO for Packet Forensics and its subsidiaries that provide advanced cyber security products and large-scale threat and commercial intelligence services for government and the private sector.

Prior to Packet Forensics, Day was Chief Security Architect for Terremark, where he started the information security practice, including a professional services group and a managed security services operations center. After Terremark was acquired by Verizon in 2011 he was responsible for leading the Advanced Threat Intelligence and Mitigation Services team in the commercial and government sectors as well as the Verizon Terremark classified program delivery teams. He also led an advanced information security research and development team.

In March 2013, Day was appointed to the Defense Science Board, which provides guidance to the Secretary of Defense and other Department of Defense leaders on technical and strategic matters impacting national security. The White House National Security Council invited Day to participate as Control Staff for the 2012 National Level Exercise that focused heavily on a major cybersecurity crisis. He also served on the President’s National Security Telecommunications Advisory Committee’s (NSTAC) Secure Government Communications Subcommittee.

Day regularly speaks and lectures on cybersecurity topics and is a contributing author for a number of books and articles. He authored and co-authored four patents in cybersecurity and is a Fellow of the American Academy of Forensic Sciences. Day graduated from the University of Miami with a BS Magna Cum Laude in Physics and Mathematics and is member of Phi Beta Kappa.

Christopher W. Day - SVP & GM, Immunity
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Gregory J. Touhill
President, AppGate Federal

Brigadier General (Ret) Gregory J. Touhill, CISSP, CISM, serves as President of AppGate's Federal Division, which offers AppGate's market-leading cybersecurity capabilities to federal agencies and departments.

Under Touhill’s leadership, AppGate SDP, is the first and only Software-Defined Perimeter to achieve Common Criteria (CC) certification. It has also been added to the Department of Homeland Security’s (DHS) Continuous Diagnosis and Mitigation Program’s (CDM) Approved Products List (APL).

Prior to joining AppGate, Touhill was appointed by President Barack Obama as the nation’s first ever Federal Chief Information Security Officer in 2016, where he was responsible for ensuring that the proper set of digital security policies, strategies and practices were adopted across all government agencies.

Brigadier General Gregory J. Touhill is a retired U.S. Air Force officer and combat veteran who served in several commands around the world including U.S. Transportation, Central, and Strategic Commands, and led the creation of the Air Force’s cyberspace operations training programs. He is a sought-after speaker and author within the information technology industry, where he is best-known for his “Cybersecurity for Executives: A Practical Guide,” which is used widely at colleges and universities across the country. He is also a faculty member at Carnegie Mellon University’s Heinz College, where he teaches Cyber Risk Management. Touhill is a recipient of numerous professional and education degrees from Harvard University’s John F. Kennedy School of Government, the Air War College, the University of Southern California and Penn State University.

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Gregory J. Touhill - President, AppGate Federal
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Gregory J. Touhill
President, AppGate Federal

Brigadier General (Ret) Gregory J. Touhill, CISSP, CISM, serves as President of AppGate's Federal Division, which offers AppGate's market-leading cybersecurity capabilities to federal agencies and departments.

Under Touhill’s leadership, AppGate SDP, is the first and only Software-Defined Perimeter to achieve Common Criteria (CC) certification. It has also been added to the Department of Homeland Security’s (DHS) Continuous Diagnosis and Mitigation Program’s (CDM) Approved Products List (APL).

Prior to joining AppGate, Touhill was appointed by President Barack Obama as the nation’s first ever Federal Chief Information Security Officer in 2016, where he was responsible for ensuring that the proper set of digital security policies, strategies and practices were adopted across all government agencies.

Brigadier General Gregory J. Touhill is a retired U.S. Air Force officer and combat veteran who served in several commands around the world including U.S. Transportation, Central, and Strategic Commands, and led the creation of the Air Force’s cyberspace operations training programs. He is a sought-after speaker and author within the information technology industry, where he is best-known for his “Cybersecurity for Executives: A Practical Guide,” which is used widely at colleges and universities across the country. He is also a faculty member at Carnegie Mellon University’s Heinz College, where he teaches Cyber Risk Management. Touhill is a recipient of numerous professional and education degrees from Harvard University’s John F. Kennedy School of Government, the Air War College, the University of Southern California and Penn State University.

Gregory J. Touhill - President, AppGate Federal
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Jeff Nord
SVP, Operations

Jeffrey Nord is Senior Vice President of Operations for AppGate. Prior to the firm’s spin-out, Jeff was the SVP of Service Delivery for Cyxtera’s colocation business.

Before joining Cyxtera, Nord held roles at Verizon, where he led the integration of Terremark and Verizon Business Cloud and Managed Services business units into a single, global operations organization. His team of more than 1,800 employees were responsible for Service Delivery, Customer Support, Infrastructure Engineering, and Change Management across Verizon’s broad portfolio of services.

Prior to Verizon, Nord led the Infrastructure and Service Delivery organizations for Terremark, which included Infrastructure Engineering, 24x7 Customer Support, Professional Services, Managed Security, and Implementation.

Before his time at Terremark, Nord was with SAVVIS, where he was responsible for Service Delivery. During his nine years at SAVVIS, Nord lived and worked in Singapore and Reading, England.

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Jeff Nord - SVP, Operations
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Jeff Nord
SVP, Operations

Jeffrey Nord is Senior Vice President of Operations for AppGate. Prior to the firm’s spin-out, Jeff was the SVP of Service Delivery for Cyxtera’s colocation business.

Before joining Cyxtera, Nord held roles at Verizon, where he led the integration of Terremark and Verizon Business Cloud and Managed Services business units into a single, global operations organization. His team of more than 1,800 employees were responsible for Service Delivery, Customer Support, Infrastructure Engineering, and Change Management across Verizon’s broad portfolio of services.

Prior to Verizon, Nord led the Infrastructure and Service Delivery organizations for Terremark, which included Infrastructure Engineering, 24x7 Customer Support, Professional Services, Managed Security, and Implementation.

Before his time at Terremark, Nord was with SAVVIS, where he was responsible for Service Delivery. During his nine years at SAVVIS, Nord lived and worked in Singapore and Reading, England.

Jeff Nord - SVP, Operations
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Julie Preiss
SVP, Marketing

Julie Preiss has nearly a decade of cybersecurity marketing expertise. She has led marketing for high growth stage companies transitioning from start-up to exit. Her background includes creating and executing strategies that increase brand awareness, generate leads, create analyst champions and provide go-to expert resources for the media.

Preiss lead communications at Cyxtera prior to the company spinning-off the AppGate business. Previous roles include head of marketing at Rsam, a GRC and security operations SaaS provider; Damballa, an advanced threat protection provider; and Dell Secureworks, the market leader in managed security services.

Preiss earned a BA in Communications from the University of Georgia. She has served as marketing mentor at the Advanced Technology Development Center and has won numerous industry marketing awards.

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Julie Preiss - SVP, Marketing
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Julie Preiss
SVP, Marketing

Julie Preiss has nearly a decade of cybersecurity marketing expertise. She has led marketing for high growth stage companies transitioning from start-up to exit. Her background includes creating and executing strategies that increase brand awareness, generate leads, create analyst champions and provide go-to expert resources for the media.

Preiss lead communications at Cyxtera prior to the company spinning-off the AppGate business. Previous roles include head of marketing at Rsam, a GRC and security operations SaaS provider; Damballa, an advanced threat protection provider; and Dell Secureworks, the market leader in managed security services.

Preiss earned a BA in Communications from the University of Georgia. She has served as marketing mentor at the Advanced Technology Development Center and has won numerous industry marketing awards.

Julie Preiss - SVP, Marketing
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Kurt Glazemakers
SVP, Engineering

Kurt Glazemakers is responsible for defining the strategy, development and roadmap of the next generation of AppGate's flagship Software-Defined Perimeter solution. Glazemakers was the independent technical expert within the Medina Capital investment team that exercised due diligence prior to the acquisition of Cryptzone in April 2014.

Glazemakers is renowned for his extensive knowledge of software development, especially in the Software-Defined network and storage area. Prior to joining AppGate, he served as CTO of CloudFounders, a developer of advanced private cloud technologies for IT as a service (ITaaS) solutions.

He also served as Terremark’s CTO Europe (now part of Verizon), where he was responsible for the development of Enterprise Cloud. Throughout his career, Glazemakers has focused on the development of innovative solutions that increase the availability, security and scalability of mission-critical infrastructures. He holds a Master of Engineering, Telecommunications and Computer Networks from University Ghent in Belgium.

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Kurt Glazemakers - SVP, Engineering
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Kurt Glazemakers
SVP, Engineering

Kurt Glazemakers is responsible for defining the strategy, development and roadmap of the next generation of AppGate's flagship Software-Defined Perimeter solution. Glazemakers was the independent technical expert within the Medina Capital investment team that exercised due diligence prior to the acquisition of Cryptzone in April 2014.

Glazemakers is renowned for his extensive knowledge of software development, especially in the Software-Defined network and storage area. Prior to joining AppGate, he served as CTO of CloudFounders, a developer of advanced private cloud technologies for IT as a service (ITaaS) solutions.

He also served as Terremark’s CTO Europe (now part of Verizon), where he was responsible for the development of Enterprise Cloud. Throughout his career, Glazemakers has focused on the development of innovative solutions that increase the availability, security and scalability of mission-critical infrastructures. He holds a Master of Engineering, Telecommunications and Computer Networks from University Ghent in Belgium.

Kurt Glazemakers - SVP, Engineering
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