Tenable Network Security is at a transition in cybersecurity technology that will change the way companies protect their networks. Tenable started the revolution when one of its co-founders created the Nessus® vulnerability scanner, the first robust solution for detecting vulnerabilities that viruses and hackers can exploit. The Tenable platform has evolved into today's most powerful vulnerability and threat detection technology.
Tenable founders Ron Gula, Renaud Deraison, and Jack Huffard build technology that secures and protects any device from threats on the Internet – malicious software, hackers, viruses, and more. Tenable wants its customers and every company to have access to the latest and best technology that will ensure they stay connected, online, and in business.
Tenable SecurityCenter™ is the trusted cybersecurity platform in use throughout the U.S. Department of Defense (DoD) and by many of the Fortune 500's. These institutions trust Tenable to alert them to threats that could bring down their networks. Nessus, the heart of Tenable’s platform, has more than one million users – protecting almost every major enterprise network in the world.
Chief Executive Officer, Chief Technical Officer
Ron Gula is a visionary, innovator, and engineer of extraordinary talent. Since co-founding Tenable Network Security in 2002, Ron is responsible for product strategy, research and development.
Ron started his career in information security at the National Security Agency conducting penetration tests of government networks and performing advanced vulnerability research. He was also the original author of the Dragon IDS and CTO of Network Security Wizards, acquired by Enterasys Networks. At Enterasys, Ron was Vice President of IDS Products and worked with many top financial, government, security service providers, and commercial companies. He also served as Director of Risk Mitigation for US Internetworking. While working for BBN and GTE Internetworking, Ron helped to develop one of the first commercial network honeypots and developed security policies for large carrier-class networks.
As a community leader and a passionate advocate for education and scientific research, Ron serves on the Advisory Board for the University of Maryland Cybersecurity Center. Together with Renaud Deraison and Jack Huffard, he was named Ernst and Young Entrepreneur of the Year 2013 for defense and security. He has authored three patents, speaks regularly at industry conferences, and is frequently quoted in national publications such as the New York Times, Bloomberg and Forbes on topics related to security. Ron has a BS from Clarkson University and an MSEE from the University of Southern Illinois.
Chief Executive Officer and Chief Technical Officer
President, Chief Operating Officer
Since co-founding Tenable Network Security in 2002, Jack Huffard has been Tenable’s President and COO. He is responsible for driving global revenue growth and leading Tenable’s corporate strategy and organizational growth.
Before Tenable, Jack was the Director of Corporate Development for Enterasys Networks, where he was involved with the acquisitions of Network Security Wizards (developer of the Dragon IDS) and Indus River Networks. In this role Jack was focused on developing corporate strategy for addressing the network security market needs. Before joining Enterasys, Jack has held various management and sales positions at John Hancock and Marriott Corporation.
Serving on the Washington & Lee University Entrepreneurial Advisory Board, Jack continues to foster new entrepreneurs and support the technology industry. Together with Ron Gula and Renaud Deraison, he was awarded the Ernst and Young Entrepreneur of the Year 2013 Award in defense and security. He has a BS from Washington and Lee University and an MBA from Babson College.
President and Chief Operating Officer
Chief Research Officer
Renaud Deraison is known in the global security community as the father of the Nessus® vulnerability scanner. His original creation, Nessus, celebrated its 15th anniversary in 2013 and is considered the de facto standard for vulnerability scanning worldwide.
Renaud has been Chief Research Officer at Tenable since co-founding the company in 2002. He is responsible for driving all vulnerability, configuration, and event and log research. Before Tenable, Renaud was the primary author of the Nessus vulnerability scanner – releasing the first version of Nessus when he was 17. He worked for SolSoft and founded his own computing security consulting company, Nessus Consulting S.A.R.L.
Renaud continues to contribute to the global security community; he is author of three patents related to network scanning and security, and has published his work in books and magazines. He is a member of the editorial board for the Common Vulnerabilities and Exposures Organization. In 2013, he received the Ernst and Young Entrepreneur of the Year Award for defense and security, together with Ron Gula and Jack Huffard.
Chief Research Officer
Our Management Team
Marcus J. Ranum
Chief Security Officer
Marcus J. Ranum is a world-renowned expert on security system design and implementation. He is a pioneer in security technology who was one of the early innovators in firewall, VPN, and intrusion detection systems. Since the late 1980s, Marcus designed a number of groundbreaking security products including the DEC SEAL, the TIS firewall toolkit, the Gauntlet firewall, and NFR's Network Flight Recorder intrusion detection system. He has been involved in every level of operations of a security product business, from developer to founder and CEO of NFR. In SC Magazine's 20th Anniversary Edition, Marcus was named as one of the top industry pioneers over the last 20 years.
Since joining Tenable Network Security in 2004, Marcus has been Chief Security Officer at Tenable, maker of the world-renowned Nessus® vulnerability scanner and Unified Security Monitoring™ architecture. At Tenable, he is responsible for research in logging tools, product training, and product/best practice evangelism. In addition, Marcus is instrumental in the design of Tenable's Unified Security Monitoring architecture.
Prior to Tenable, Marcus served as a consultant to many Fortune 500 firms and national governments, as well as a guest lecturer and instructor at numerous high-tech conferences. In 2001, he was awarded the TISC "Clue" award for service to the security community and the ISSA Lifetime Achievement Award. Marcus was most recently senior scientist at Trusecure Corp., an international risk management firm. He serves as a technology advisor to a number of start-ups, established concerns, and venture capital groups.
Chief Security Officer
John S. Lyons
Vice President of Sales, North and South America
John Lyons joined Tenable Network Security in 2005 and has been instrumental in developing the company's enterprise product sales strategy and culture.
John has spent most of his professional career in the fields of IT sales and sales management. Over the last 20 years, he worked for a variety of companies in the areas of network management, storage, and network security. John's experience ranges from larger, established organizations, such as VERITAS, Seagate Software, and NetIQ, to smaller, early-stage companies such as Deltek, Peopleclick, and OpenService. In these roles, he has managed direct and channel sales teams in both the commercial and federal vertical markets.
During his career, John has received certification in a wide variety of sales strategies and philosophies including QBS, SPIN Selling, and Sandler.
John has a BA from Virginia Polytechnic Institute and State University in Blacksburg, VA.
VP of Sales, North and South America
Vice President of Finance
Andrew Gabor joined Tenable Network Security in 2010 as the Vice President of Finance. At Tenable, he serves as the senior executive overseeing all financial operations and reporting.
Andrew brings over thirty years of financial experience to Tenable. He began his career at Deloitte where he managed the audits of large financial services companies, and has served as Vice President of Finance and/or Controller at a host of companies in industries ranging from insurance to software to apparel. In his role at HRH Insurance, Andrew participated in preparing HRH for an IPO, developing and executing an aggressive M&A program and coordinated their SEC filing requirements.
Most recently, Andrew was a professional services consultant for 8 years serving more than 20 companies in the Washington, DC region. He was a key member of the M&A team on the WorldCom financial restatement. Andrew also played major roles in the implementation of Sarbanes-Oxley processes at MCI, Washington Gas, Fannie Mae, and other companies. As Director of Technical Accounting matters at MorganFranklin Corporation, he provided guidance to clients in accounting, business process improvement, M&A transactions, and financial reporting. Andrew was involved in business development and was account manager for a large team at Fannie Mae in 2009 and 2010 during a challenging period for that company.
Andrew studied Political Science and Economics at Brown University and has a BS in Accounting from Virginia Commonwealth University. He is a licensed CPA.
VP of Finance
Vice President of Marketing
Jon Brody joined Tenable Network Security in 2011 as the Vice President of Marketing. At Tenable, he serves as the senior executive overseeing global marketing strategy and execution. Jon is responsible for marketing communications, industry analyst relations, and global brand management.
For the past 10 years, Jon has led marketing teams that have established leaders in enterprise middleware, IT security, and compliance. He led marketing at TriCipher Inc, acquired by VMware, transforming the former strong authentication appliance vendor into the leading provider of cloud identity and access management solutions. Jon's team established Sygate Technologies, a freemium consumer personal firewall vendor, as the category leader for enterprise endpoint security, acquired by Symantec. Before joining Sygate, he was Vice President of Marketing at PeerLogic (acquired by Critical Path), an innovator in large-scale distributed computing and enterprise application integration solutions.
Jon has a BA from Case Western Reserve University.
VP of Marketing
Vice President of Services
John Liccione joined Tenable Network Security in 2011 as the Vice President of Services. At Tenable, he serves as the senior executive overseeing all post-sales customer relations and support strategy and execution. John is responsible for software and SaaS technical support, certification training programs, and professional services.
John is an executive with a strong track record of bringing to market and delivering award-winning software solutions and services to government and industry. He was most recently General Manager of Online Products at Metalogix and also served as President of BPOS Experts, where he was responsible for defining and executing the product strategy for Metalogix's cloud migration software products. Prior to that, John served stints as Chief Technology Officer at Cemaphore Systems, Panacya (now Boxtone), and Evergreen Assurance, and served as Vice President of the eBusiness Services hosting business unit at USinternetworking. While at Evergreen Assurance, he brought to market a patented, one-click, 15-minute disaster recovery management system that won Secure Computing Magazine's Global Award for Best Disaster Recovery Service for in 2004. While at ARINC, Inc., John brought to market a private IP network service called AOCnet that linked together all the major US airlines with the FAA for real-time flight and schedule data interchange, one of the first private industry-specific Extranets of its kind.
John served in the United States Air Force and at the National Security Agency as an intelligence analyst and cryptologic linguist. He holds a BS in Electrical Engineering from the University of Maryland.
VP of Services
Vice President of Operations
At Tenable, Cynthia Gula is responsible for Human Resources and Product Licensing operations. Her teams lead recruiting, retention, benefits programs, and facilities management globally. She oversees Tenable’s product licensing operations team that currently processes licensing and renewals for more than 20,000 commercial, government, and international customers annually.
Cyndi was the founder and President of Network Security Wizards, an advanced network intrusion detection technology company that was acquired by Enterasys Networks in 2002.
Cyndi has a BS in Glass Engineering Science from Alfred University and began her career in Quality Assurance and Process Engineering positions at Carr Lowrey Glass Company in Baltimore, MD, and Syracuse China in Syracuse, NY.
VP of Operations
Associate General Counsel
Since joining Tenable Network Security in 2008, Mark Zuckerman has served as Tenable's lead in legal matters. At Tenable, Mark's responsibilities include reviewing and negotiating contracts to ensure an appropriate balance of risk, building and enforcing Tenable's expanding intellectual property portfolio, and ensuring compliance with state and federal regulations.
Prior to joining Tenable, Mark served as an associate in the Global Sourcing practice group at Pillsbury Winthrop Shaw Pittman, LLP. There, his practice focused on software licenses, large information technology and business process outsourcings, website terms of service and privacy policies, as well as a variety of other technology agreements.
Mark has BAs in Economics and Government from the University of Virginia and a JD from Harvard Law School.
Associate General Counsel
Vice President of Business Development
Vatsal Sonecha joined Tenable Network Security in 2012 as the Vice President of Business Development. In this role, he oversees global technology and channel partnerships.
Before joining Tenable, Vatsal led the go-to-market strategy for VMware's Horizon end-user computing platform and worked with key partners to drive the evolution of SaaS distribution practices. He came to VMware through the acquisition of TriCipher, where he was VP of Business Development and Product Management.
As VP of Market Development at McAfee, Vatsal led the development of the telecommunications market as a distribution channel. His experience includes strategy and business development roles with Raza Foundries, an early-stage Venture Capital firm, and MCI/UUNET. He has also held engineering, marketing, sales, and sales management roles at IBM, AOL, and ANS Communications.
Vatsal holds a MS in Computer & Information Science from the University of Delaware.
VP of Business Development
Ann E. Burns, SPHR
Vice President of Human Resources
Ann is the VP of Human Resources for Tenable Network Security. Ann has over twenty years of experience in business including human resources, management, marketing, and communications. Her responsibilities are to lead, develop, and improve all areas of the human resources function to drive the growth of the business unit.
Ann holds a Bachelor of Science, Business Administration, from Towson State University and a Master of Science, Organizational Development, from Johns Hopkins University. Ann is a Certified SPHR (Senior Professional in Human Resources. Ann joined Tenable in February. Previously, she worked at SAIC as VP/Human Resources Director and Impact Innovations Group in Marketing and as an Employment and Training Manager.
VP of Human Resources
Vice President of Sales, EMEA
David Cummins is the Vice President of Sales for the EMEA region. In this role, he and his team are shaping strategy, creating opportunities, building sustainable partner relationships, and establishing an infrastructure to drive growth across Europe, the Middle East and Africa (EMEA). David joined Tenable Network Security in September 2010 as the Director of International Sales. He brings more than 15 years of technology sales experience and is responsible for delivering international sales growth at Tenable.
David was previously Sales Director EMEA for AirMagnet where he was responsible for developing and managing all strategic relationships with customers, partners, and alliances across EMEA, which mobilized significant growth initiatives in developed and emerging markets. He also ensured the successful transition of the EMEA business to Fluke Networks following its acquisition of AirMagnet in September 2009 and continued business growth during this period.
Over the years, David held a variety of positions within multinational corporations including IBM where he contributed to the successful development of its SMB business across IBM’s full portfolio of products and services. He also supported the strategy and execution for a number of start-up companies, both pre- and post-venture capital funding, building IBM technologies into their businesses.
VP of Sales, EMEA
Vice President of Sales, APAC
Attley is responsible for executive management of all aspects of the company’s operations in Asia-Pacific, including sales, channel, service and strategies to grow the company’s business throughout the region.
Attley has spent over a decade in the enterprise, telecommunication and technology industries working for some of the largest technology leaders.
Prior to Tenable Network Security, Attley held several executive-level positions with Arbor Networks, Enterasys Networks, AT&T and Lucent Technologies. Attley was President of Enterasys Networks’ Asia Pacific. Prior to this role, he served as AT&T and Lucent Technologies’ Managing Director for the Asia-Pacific region. Attley held P&L responsibility for Lucent’s Global Commercial Markets Business, valued at over $200 million, and also managed business development initiatives such as identification of major new business opportunities for new and existing customers in the region.
Attley has achieved the Harvard University Executive Program for Global Leadership, and holds a degree in Computer Science and Mathematics from the University of Minnesota. He resides in Singapore with his wife and three kids.
VP of Sales, APAC