Ireland’s information technology sector sits at the center of the global digital economy. From cloud infrastructure and enterprise software to managed services and cybersecurity platforms, the country hosts both multinational technology giants and fast-growing indigenous firms. That position brings constant exposure: securing cloud-native systems, protecting enterprise customers, and maintaining resilience across globally distributed environments. The leaders below are shaping how Ireland’s technology providers build security into their platforms, operations, and growth strategies.
Jason Scanlon — Chief Information Security Officer, Numata Business IT
Jason Scanlon is CISO at Numata Business IT, bringing more than two decades of experience across managed services, consultancy, and enterprise IT infrastructure. His career has spanned designing and deploying large-scale network infrastructure, troubleshooting complex systems, and aligning IT strategy with business objectives. With certifications including EC-Council Certified CISO, VMware Certified Professional, and multiple Microsoft credentials, he combines technical depth with executive leadership. His background in managed services environments provides valuable perspective on securing multi-client infrastructure, outsourced environments, and cloud-integrated enterprise systems.
Paul Conlon — Chief Information Security Officer and Vice President of IT Infrastructure and Operations, Aptiv
Paul Conlon serves as CISO and VP of IT Infrastructure and Operations at Aptiv, where he oversees cybersecurity alongside global infrastructure operations. His career includes senior leadership roles at Fiserv, Vodafone, BT, and Amazon, where he managed worldwide data center operations and infrastructure transformation. That operational foundation gives him strong insight into securing hyperscale infrastructure, distributed environments, and mission-critical technology platforms. His experience reflects the intersection of infrastructure reliability and cybersecurity resilience required to support global enterprise technology services.
Ed Heneghan — Chief Information Security Officer, Viatel Technology Group
Ed Heneghan is CISO at Viatel Technology Group, where he leads cybersecurity strategy for a firm delivering secure connectivity, cloud transformation, and managed IT services. His career includes hands-on experience across security engineering, incident response, PKI infrastructure, and enterprise security operations. With prior roles spanning financial services, government infrastructure, and consulting, he brings strong operational expertise in securing enterprise networks and supporting organizations through evolving threat landscapes.
Colm Gallagher — Chief Information Security Officer, CommSec – Sensible Cyber Security
Colm Gallagher is CISO at CommSec – Sensible Cyber Security, bringing a background rooted in digital forensics, cybercrime investigation, and incident response. With expertise in forensic computing, expert testimony, and ISO 27001 implementations, he represents the investigative and assurance side of cybersecurity leadership. His experience strengthens organizations’ ability to detect, investigate, and respond to incidents while building governance structures aligned with international standards.
Mark Denihan — Chief Information Security Officer and Vice President, Synchronoss Technologies
Mark Denihan serves as CISO and VP at Synchronoss Technologies, where he leads enterprise security strategy following a progression through roles including Deputy CISO and Product Security Architect. His background includes ethical hacking leadership at IBM and security engineering roles focused on application security, threat modeling, and vulnerability management. That offensive security foundation supports a proactive approach to securing cloud platforms, telecommunications infrastructure, and software products.
Declan Mulcahy — Chief Information Security Officer and Data Protection Officer, ActiveOps PLC
Declan Mulcahy is CISO and Data Protection Officer at ActiveOps PLC, where he oversees cybersecurity, privacy, and regulatory compliance initiatives. His experience includes leadership roles across software development, R&D, and enterprise technology management. With expertise spanning SOC 2, GDPR, incident response, and regulatory compliance, he brings a strong governance-driven approach to securing enterprise SaaS platforms and protecting client data in regulated environments.
Securing Ireland’s Role as a Global Technology Hub
Ireland’s technology sector depends on trust. Cloud providers, software platforms, and managed services firms all operate as extensions of their customers’ infrastructure. The CISOs leading these organizations are responsible not only for defending their own systems but also for protecting the businesses that rely on them. Their work ensures that Ireland remains not just a center for technology innovation—but a foundation for secure, resilient digital operations worldwide.