security and
availability

Carl Herberger, CEO of Corero Network Security, brings over 25 years of cybersecurity leadership experience. As an internationally recognized expert, he has held executive roles at top security firms including Radware, Evolve IP, Allied InfoSecurity, and most recently as Principal Security Consultant and virtual CISO. Carl is a sought-after speaker and thought leader who has appeared on major broadcast outlets including Fox Business, CNN, and Bloomberg. His insights on cyber threats and security solutions are frequently published in outlets like The New York Times, The Wall Street Journal, and The Hill.

Among his many achievements, Carl received the Technology Executive of the Year award in 2019 and helped establish the US Air Force’s first cyber warfare unit during his time as an intelligence officer. As CEO, he leverages his deep expertise across all facets of cybersecurity to lead our corporate strategy and help our customers manage risk and build resilient systems capable of withstanding today’s cyber threats.

Ashley Stephenson (‘CTO/CPO’) first joined Corero Network Security as Executive Vice President of the Network Security division, with responsibility for product and solution strategy in March 2012, and was appointed Chief Executive Officer of Corero in January 2013. In May 2019, after the successful introduction of the company’s Smartwall product line, he transitioned to the role of CTO and in 2025 has also assumed the role of CPO. As a global IT industry executive and internet technology entrepreneur, Ashley has worked in the United States, Europe and Asia. His previous experience includes: CEO of Reva Systems, and CEO of Xedia Corporation. Ashley began his career at IBM Research & Development in the UK. He is a graduate of Imperial College, London with a degree in Physics and is an Associate of the Royal College of Science.

CURRENT APPOINTMENTS
Director of Eyealike, Inc. and StepVest LLC.

Julian Palmer, Executive Vice President of Engineering, is responsible for Corero’s worldwide product development and research team. Palmer brings over 25 years of engineering leadership and product development across the network security, storage, and operating systems industries. Palmer has a proven track record of developing product and engineering strategy, and successfully leading multi-site R&D organizations to success.

Prior to joining Corero, Palmer was a Distinguished Technologist and Senior Product Manager within HP Enterprise Security Products and HP Networking divisions. Within HP TippingPoint, Palmer was instrumental in developing both product and engineering strategy, and led various significant new product introduction projects in the next generation firewall, intrusion prevention and networking spaces. Palmer has also held senior roles within 3Com Corporation, Adaptec, and Digital Equipment. Palmer has a Bachelor of Science degree in Computer Science from Edinburgh University, United Kingdom.

In his role as Executive Vice President, Operations and Customer Services John assures Corero outperforms its competition in terms of quality, service level agreement (manufacturing) and cost of goods. John has been providing substantial operational value to the company’s business for over 10 years, continuously improving value to the customer through streamlining corporate processes, innovating services, and focusing on their needs. John’s quiet leadership style and passion for learning has resulted in 25 years of creative problem-solving experience in many business areas, including security services, professional services, customer relationships, supply chain management, manufacturing, regulatory compliance, quality assurance, sales management, product marketing, product development, engineering, and employee career development.

Prior to joining the company, John was VP of Operations for Top Layer Networks who was acquired by Corero Network Security where his career progressed from an engineer to Vice President of Operations. Prior to Top Layer, John was a senior consultant, delivering product design consulting services for Bleck Design Group to industries ranging from consumer products, telecommunication equipment and medical surgical products. He also held a position as a mechanical engineer for Bose Corp where he learned that value of long-term customer focused thinking. He holds a BSME from Boston University and MBA from Babson College with a focus on managing technology-intensive enterprise.

Sean Newman is VP Product Management, responsible for Corero’s product strategy. Sean brings over 25 years of experience in the security and networking industry, to guide Corero’s growing leadership in the real-time DDoS protection market.

Prior to joining Corero, Sean’s previous roles include network security Global Product Manager for Cisco, who he joined as part of their acquisition of cyber-security vendor Sourcefire, where he was Security Evangelist and Field Product Manager for EMEA. Prior to that he was Senior Product Manager for endpoint and network security vendor Sophos, after having spent more than 12 years as an Engineer, Engineering Manager and then Senior Product Manager for network infrastructure manufacturer 3Com.

Corey Still is the Vice President of Strategic Alliances with Corero Network Security. In this role, he is responsible for forging and nurturing strategic partnerships to enhance Corero’s market presence and drive growth. Corey leverages his extensive industry experience in order to identify and capitalize on opportunities for collaboration, ensuring mutual success for Corero and its partners across the globe.

Previously, Corey was the Director of Cyber Security and Software Defined Wide Area Network (SDWAN) Practices with Bell Business Markets. There, he led the security and SDWAN product teams, which were responsible for the Professional Service and Managed Services products and services delivered to the market. He and his team established strategic direction, development, and support for offerings across all layers of a customer’s infrastructure, including endpoint, on premise, network, mobility, and cloud. Corey also initiated and led the Cyber Threat Intelligence Program at Bell Canada.

Corey joined Bell Canada in 2011, bringing over 15 years of experience as a senior leader at a top IT/Systems Integrator. Throughout his career, he has led large global IT, risk, investment governance, and transformation projects, demonstrating a consistent ability to drive innovation and achieve strategic objectives.

As CFO Chris is responsible for finance, HR, legal, compliance and investor relations at Corero. Chris has over 15 years’ experience in finance and operational roles across international B2B service environments. Chris spent 13 years at CBRE Global Workplace Solutions, a US-listed global Facilities Management and Property Services provider, in a number of senior finance roles. Prior to CBRE, Chris spent 3 years supporting a number of divisions at BNP Paribas. Chris trained at EY and is a fellow of the Association of Chartered Certified Accountants and completed his MBA in 2018.