Louis Mastelinck
security consultant | MVP
Belgium

I explain security simply

Louis Mastelinck is a Belgian MVP and Microsoft Security Expert, with deep expertise in Microsoft Entra ID and enterprise IAM. He excels in designing complex Conditional Access architectures, cross-tenant security, and Zero Trust implementations for large-scale environments. A GCFA-certified incident response specialist, Louis combines his mastery of Microsoft's security stack (Defender XDR, Sentinel, Purview) with identity-first security strategies to neutralize threats and safeguard organizations. Passionate about Identity and Access Management, he thrives on solving intricate Entra ID challenges from guest lifecycle automation to advanced RBAC and PIM. When not architecting secure-by-design solutions, Louis shares his knowledge through community speaking, technical videos, and his platform SecurityBlogSearch.com. Serious about security, nerdy about identity. Although he takes his work seriously, Louis isn't afraid to embrace his inner nerd. He finds joy in exploring the depths of technology and staying up-to-date with the latest cybersecurity trends. In his spare time, he generously shares his knowledge with the community through public speaking engagements, informative videos, and insightful blog posts.

Session Portfolio
Current Sessions Delivered by Louis
Privileged Identity Management: snowball from basic to advanced
pim
entra-id
privileged-identity-management
zerostandingpermissions

Managing privileged identities is simple in theory—activate privileges only when necessary. But as your IT team grows, or when integrating specific activation requirements like FIDO2 for multi-factor authentication, account tiering or roles that don't exist in Entra ID, simplicity turns into complexity. Join our session to kickstart your understanding of PIM's fundamental principles and discover key considerations when building your PIM architecture. We'll walk you through hands-on demonstrations, showcasing how effortless it is to set up PIM for both basic and advanced scenarios. Learn how to go more granular than default settings offered by Microsoft, ensuring your security measures align precisely with your organization's needs.

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AI Agents in Entra ID: Control the New Identity Type
entra-id
ai-security
agent-id

Microsoft has clearly doubled down on the "era of AI" – whether you're a frontier company deploying agents across your tenant or a smart follower carefully evaluating the risks and potential. Understanding how AI agents exist as a new identity type is now mission-critical for security architects. In this session, you'll gain fundamental insights into Microsoft's implementation of agents in your organization. Learn practical strategies to control, manage, and when needed, block them effectively. Key takeaways: How agents authenticate and operate within Entra ID How to identify existing agents in your tenant Native controls for agent lifecycle management Risk-based strategies for agent permissions and monitoring Blocking mechanisms for high-risk scenarios Microsoft is rapidly building out AI agent features, but the fundamentals are now established. This is the perfect moment to deeply understand how agents operate within your Entra ID ecosystem , ensuring you're ready to adopt upcoming capabilities while properly securing your organization's agent use cases. *This is a security session, not a session demonstrating agent capabilities.

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Louis can deliver sessions in
English
Dutch
 Flemish
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Past Speaking Engagements
A Look Back at Past Speaking Engagements
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