Leadership team

With over 25 years of executive federal government and commercial experience at both public and private companies, Mr. Taddeo is Appgate’s Chief Executive Officer and President. He previously served as Appgate’s CISO, directing global security operations, crisis management and business continuity processes, and oversaw Appgate’s federal government business, working closely with sales and technical leadership to define and deliver Zero Trust solutions to meet the needs of Appgate’s public sector customers.

Previously, Mr. Taddeo was the CISO and President of Cyxtera Federal Group. He is the former Special Agent in Charge of the Special Operations/Cyber Division of the FBI’s New York Office. In this role, he directed over 400 special agents and professional support personnel conducting cyber investigations, surveillance operations, information technology support and crisis management. Previous responsibilities focused on FBI international operations, including service as a Section Chief in the International Operations Division, where he managed operations in Africa, Asia and the Middle East.

Mr. Taddeo received a B.S. in Applied Physics from Rensselaer Polytechnic Institute. After completing his studies, Taddeo served as a tank officer in the U.S. Marine Corps. In 1994 he earned a J.D. from St. John’s University. Upon graduation, he joined the law firm of Mound Cotton Wollan & Greengrass LLP in New York, where he practiced in the field of civil litigation until entering on duty with the FBI. Mr. Taddeo is a member of the New York State Bar and a graduate of the CISO Executive Program at Carnegie Mellon University.

Since 2011, Rodriguez has also served as a Partner and the CFO of Medina Capital. In that role, Rodriguez focuses on evaluating potential investments, fundraising, fund administration and financial guidance across the firm’s portfolio.

Rodriguez served in positions of increasing seniority at Terremark from 2005 until June 2011, most recently as Vice President of Financial Planning. In that role, he was responsible for the reporting of the financial and operational results of Terremark and its subsidiaries to its executive team and the investor community.

Prior to joining Terremark, Rodriguez held various positions at the Burger King Corporation focusing on worldwide valuation, process improvement, investment analysis and international fraud audits. Rodriguez started his professional career as part of the assurance practice at BDO Seidman LLP focusing on the firm’s financial services, technology, hospitality and aviation clients in South Florida, the Caribbean and Central America.

Rodriguez received his bachelor’s in Business Administration from the University of Notre Dame and his master’s in Business Administration from the University of Miami.

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.

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.

Garbis has over 30 years of product management, engineering, and consulting experience at security and technology firms, including RSA, where he focused on identity management and governance products. Garbis hold a CISSP certification, has a Bachelor’s degree in Computer Science from Cornell University, a High-Technology MBA from Northeastern University, and is a published author. He is also co-chair of the Boston chapter of the Cloud Security Alliance.

Mark joined Crypztone, the pre-cursor to Appgate, in 2014 to build and lead global sales prior to the creation of Cyxtera in 2017. At Cyxtera, he held senior sales positions focused on growing colocation across the technology and hyperscale industry and played a key role in the sales launch of Cyxtera's on-demand infrastructure product offering. Additional experience includes serving on the sales leadership team that grew Terremark's hosting, cloud and security business to a $1.4B acquisition by Verizon in 2011, then moving to Verizon Enterprise Solutions to help to integrate Terremark cloud and security sales into VES and scale that business.

Mark is a graduate of Boston College’s Wallace E. Carroll School of Management.

Paul originally joined Cryptzone, the pre-cursor to Appgate, in 2016 to build and lead global marketing prior to the creation of Cyxtera in 2017. At Cyxtera, he then held the position of Senior Vice President of Corporate Marketing. Prior to rejoining Appgate in 2024, Paul served in senior marketing roles at companies including Zededa, LoginVSI, Mendix and Precise Software. Paul holds a BS and an MBA from Bentley University.

Prior to joining Appgate, she served as Senior Technologist for Cybersecurity at Leidos Corporation, where she drove organizations toward comprehensive, risk-based protection strategies. Prior to Leidos, Ms. Hart served as Chief Information Security Officer for the Federal Bureau of Investigation, ensuring that the FBI’s data, capabilities and networks were available where and when the Bureau and its partners needed them. She currently serves as Adjunct Faculty at Carnegie Mellon University, supporting the Chief Information Security Officer Certificate program. Ms. Hart’s areas of expertise span the scope of cybersecurity, from compliance to operational, and include security architecture, advanced persistent threat, insider threat, intelligence, risk and compliance, and compromise assessment and mitigation.

As Vice President of HR Operations at Cyxtera, Suarez-Aguiar led the global benefits program as well as serving as the HR operations leader for the Cybersecurity business unit handling employee relations, performance management, and organizational planning. Prior to Cyxtera, she ran the HR function at Easy Solutions. Suarez-Aguiar started her professional career at Terremark where she served in positions of increasing seniority in employee benefits. When Terremark was acquired by Verizon in 2011, she led the process to transition all employee benefits including managing employee communication and benefits education. At Verizon, she served as the HR Business Partner for the Colocation Business unit which involved consulting with business leaders to provide creative solutions to HR challenges surrounding compensation, employee relations, and organizational development.

Carolina received her BS in Business Administration with a concentration in Human Resource Management and her MBA from Florida International University.

Before joining Appgate, Lopez was Vice President of Global Operations for Cyxtera‘s fraud offering. His team of over 125 employees were responsible for Service Delivery, Customer Support, Infrastructure Management, and SOC Operations.

Prior to Cyxtera, Lopez led the Service Delivery organization for Easy Solutions, which included Customer Support, SOC Operations, Professional Services, and Risk and Compliance.

Lopez previously served as the Chief Information Officer for Marquis Bank, and as a Bank Secrecy Act/Anti-Money Laundering Manager for Ocean Bank, both community banks based in Florida. He holds a degree in Information Technology from the University of Miami’s School of Engineering.

Previously, Mr. Dale was Associate General Counsel of Cyxtera Technologies, Inc., Legacy Appgate’s former parent company, from May 2017 to January 2020, and Associate General Counsel of 3Cinteractive from July 2014 to April 2017. Prior to that, Mr. Dale was a corporate and securities associate at Greenberg Traurig, LLP from September 2010 to June 2014. He received his B.S. in Finance, B.A. in Economics, and M.S. in Finance from the University of Florida, and his Juris Doctorate from the University of Virginia.