Nelson Marques is Cybersecurity Officer at VodafoneZiggo and a PECB Certified Trainer, delivering ISO/IEC 27001 Lead Auditor and Lead Implementer courses alongside other industry-leading certifications such as CISM and CCSP. Across more than two decades in hospitality, telecoms, financial services, and higher education, he has held senior security roles at organizations including Marriott, Kyocera EMEA, N26, and Vodafone, leading global governance, risk, and compliance functions across European and North American operations. He delivers training courses and online webinars on cybersecurity matters in English, Portuguese, and Spanish, including AI Risk Management covering the NIST AI Risk Management Framework, ISO 31000, the EU AI Act, and the OWASP Top 10 for AI. He speaks regularly on cybersecurity and AI, and has always strived to translate complex security challenges into plain language that boards, engineers, and everyday employees can act on. His work is shaped by two ideas: that "security is baked in, not sprayed over," and a discipline he calls "Culture by Design," which holds that security culture deserves the same intention, rigor, and engineering as system architecture itself.