Nathalie Claes is a leading expert in information security and risk management, known for her pragmatic and human-centered approach to cybersecurity. She is the founder and Managing Director of Dadir, a consultancy firm that assists organizations in implementing information security and quality management systems, with a focus on ISO 27001, GDPR compliance, and AI governance. With over two decades of experience as a Chief Information Security Officer (CISO), Claes has served in various roles, including external ISO27001 auditor, Data Protection Officer (DPO), and consultant across multiple sectors.
In 2025, she authored the book Gehackt, wat nu?, offering a practical guide to digital security that emphasizes the human factor in cybersecurity. The book aims to demystify complex technical jargon and provides actionable insights for managers and professionals without deep IT expertise, highlighting how human errors and organizational processes can lead to vulnerabilities. Claes is also a member of the Belgium’s Cyber Security Coalition, contributing to national efforts in enhancing cybersecurity awareness and practices. Her work underscores the importance of integrating human behavior understanding into cybersecurity strategies to build resilient organizations.
LinkedIn: https://www.linkedin.com/in/nathalieclaes/
ABOUT DADIR
Dadir is a Belgian compliance consultancy specializing in guiding organizations through ISO 9001 quality management and ISO 27001 information-security certification, while also offering GDPR/DPO-as-a-service, AI governance and tailored risk assessments to improve business efficiency and data protection . Dadir delivers pragmatic, structured, and client‑focused solutions for improved processes and cyber resilience.