Serbia’s cybersecurity leadership is being shaped by a mix of regulated finance, media and telecom ecosystems, high-volume digital platforms, and product-led tech companies. That combination creates a demanding threat profile: fraud and account takeover pressure, strict regulatory expectations, and the operational reality of keeping always-on services resilient. The leaders below reflect that mix—balancing governance and compliance with hands-on detection, response, and secure-by-default delivery.
Vaclav Dovnar — Deputy CISO, o1tech
Vaclav Dovnar is a hands-on Deputy CISO (and former CISO) focused on measurable risk reduction in high-scale product environments. He builds security operating models tied to OKRs, emphasizes exploitability-led AppSec, modernizes detection and incident response through higher-signal SIEM use, and develops anti-fraud capabilities measured in real-world outcomes. He’s also delivered ISO 27001 across multiple countries and supported IPO readiness.
Marko Zivadinovic — Chief Information Security Officer, Yettel Bank
Marko Zivadinovic is CISO at Yettel Bank, following multiple CISO roles in Serbian banking, including Mobi Banka and mts Banka. His background bridges security leadership with digital banking transformation and product development experience—useful in aligning security with customer-facing innovation. He also brings experience from major banking groups in Serbia, spanning digital initiatives, CRM leadership, and channel development.
Ivana Radicevic — Chief Information Security Officer, Wiener Städtische osiguranje a.d.o. Beograd / Wiener RE
Ivana Radicevic is CISO at Wiener Städtische osiguranje a.d.o. Beograd / Wiener RE, with a progression from security engineering into executive security leadership. Her work spans ISMS delivery (ISO 27001), business continuity (ISO 22301), SIEM, vulnerability assessment, and enterprise security controls across network, identity, and data protection domains. She brings deep hands-on familiarity with security tooling alongside governance.
Slobodan Maksimov — Chief Information Security Officer, P3 Serbia
Slobodan Maksimov is CISO at P3 Serbia, after leading IT governance within the same organization. He brings a strong operations-and-delivery background from large enterprise environments, including a decade at NIS (Gazprom Neft) across innovation and executive support. His trajectory reflects a practical governance-to-security leadership path: building structure, accountability, and execution discipline across IT and security priorities.
Zvezdan Arsovski — Chief Information Security Officer, Mozzart
Zvezdan Arsovski is an information security leader with experience across telecom, government/defense environments, and the sports betting industry. He brings practical expertise implementing ISO 27001 and PCI DSS, building risk management processes, and developing security policies and programs. With a telecommunications technical foundation and CISSP credentials, he’s positioned to balance compliance demands with operational realities in high-availability digital services.
Aleksandar Jovanov — Chief Information Security Officer, TENFORE
Aleksandar Jovanov is CISO at TENFORE, with prior information security leadership in Serbian banking. His experience includes years leading technical support and communications functions before moving into dedicated security leadership, giving him a strong infrastructure and operational grounding. That blend supports a security approach that’s closely tied to production systems, reliability, and day-to-day controls that hold up under real constraints.
Milos Radic — Chief Information Security Officer, OnRe
Milos Radic is CISO at OnRe, after serving as vCISO and leading security functions in technology organizations. His background blends security compliance (including SOC 1/SOC 2 and ISO 27001), DevSecOps, and incident management—useful for building scalable controls in fast-moving engineering environments. He also brings experience in security and infrastructure engineering, connecting governance needs to implementable technical outcomes.
Darko Mladenovic — Chief Information Security Officer, United Media
Darko Mladenovic is CISO at United Media, with a strong engineering foundation in telecom networks and security operations. His experience includes core IP network implementation and operations (routing, VPN, BGP/OSPF, GPON, LAN/WAN) alongside security engineering work inside the wider United Group ecosystem. This technical depth supports security programs grounded in real infrastructure, service reliability, and operational incident handling.
The Leaders Elevating Serbia’s Cyber Resilience Across Banking, Media, and Product Tech
Serbia’s cybersecurity landscape demands leaders who can defend high-value financial systems, protect large consumer platforms, and modernize security without slowing delivery. This group reflects that reality: banking CISOs strengthening governance and trust, product-focused leaders pushing measurable risk reduction, and infrastructure-rooted security leaders hardening the networks and operations that keep critical services running.