Network Segmentation, Conditional Access, Security Architectures

Cyber Log — October 8, 2025

Focus Areas: Network Segmentation, Conditional Access, Security Architectures

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Objectives

Bridge Security+ network segmentation theory with Intune / Entra Conditional Access labs.

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Activities & Labs

• Implemented conditional-access policy limiting sign-ins by compliant devices only.
• Tested network isolation through VLAN configuration simulation.
• Studied Zero Trust Architecture principles from CompTIA objectives 3.3.

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Knowledge & Concept Highlights

• Logical vs physical segmentation.
• Zero Trust model — verify explicitly, least privilege, assume breach.
• Conditional access enforcement points and identity as the new perimeter.

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Reflections & Takeaways

Validated understanding of how cloud identity and network segmentation overlap.
Documentation practices improved by maintaining daily markdown entries.

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End of Log — October 8, 2025