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# microsoft mvp · microsoft security blog · 571 posts

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-Uri "learn.cloudpartner.fi"

I've been breaking down Microsoft's security stack since before Entra ID was even called Entra ID. No fluff, no paywalls — just technical depth on Entra, Sentinel, Defender, Purview, and Azure Security that the official docs rarely give you.

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11Years active
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Harri Jaakkonen
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Discussion on technical topics and MVP path exploration. Pick the intensity that fits your timeline. Only for Individuals.

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One 30-minute 1:1 session per week. Good for steady progress alongside a day job. Technical discussions and MVP path exploration.
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Two 30-minute 1:1 sessions per week. For people who need accountability and a review loop. Technical discussions and MVP path exploration.
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Azure Container Apps Sandboxes Are GA: The Portal and Security Boundary for Agents
27/09/2026·15 min read
Azure Container Apps Sandboxes Are GA: The Portal and Security Boundary for Agents

Azure Container Apps Sandboxes are generally available. This is what the new portal, microVM isolation, egress policy, managed identity injection, VNet integration, IaC, and observability mean for agent platforms.

Microsoft Sentinel in September 2026: Data Lake, Fabric, and Incident Cases
25/09/2026·14 min read
Microsoft Sentinel in September 2026: Data Lake, Fabric, and Incident Cases

Microsoft Sentinel's September 2026 update unifies data lake onboarding, retention, Advanced Hunting, Fabric compute, and Incident Cases. Here is what changes for SOC architecture and agent-assisted response.

Securing Connected Agents in Copilot Studio: A2A as a New Trust Boundary
21/09/2026·14 min read
Securing Connected Agents in Copilot Studio: A2A as a New Trust Boundary

Copilot Studio can delegate work to Foundry, A2A, and Microsoft 365 Agents SDK agents. This security architecture guide maps identity, context, tool, network, and audit controls across every hop.

Beyond Microsoft’s DevSecOps for IaC: Policy, Drift and AI Remediation
15/09/2026·12 min read
Beyond Microsoft’s DevSecOps for IaC: Policy, Drift and AI Remediation

The second part of the series looks at policy as code, drift reconciliation, security scanning, GitHub environments, and how AI can participate in remediation without undermining the trust boundary.

Beyond Microsoft’s DevSecOps for IaC: Trust Boundaries for GitHub, Copilot and AI Agents
14/09/2026·11 min read
Beyond Microsoft’s DevSecOps for IaC: Trust Boundaries for GitHub, Copilot and AI Agents

A practical look at how GitHub, GitHub Actions, Azure identity, policy as code and AI-assisted engineering fit together in a secure Infrastructure as Code delivery model.

When AI Starts Acting: Why Agent Security Is Moving Beyond Prompts
09/09/2026·11 min read
When AI Starts Acting: Why Agent Security Is Moving Beyond Prompts

Why AI agent security must protect authority, not just prompts, with deterministic policy, isolated sessions, runtime attestation and tenant governance.

The Agent Has an Identity Now: Microsoft's New Security Model for AI Agents
07/09/2026·10 min read
The Agent Has an Identity Now: Microsoft's New Security Model for AI Agents

Microsoft Entra Agent ID, identity blueprints, MCP authentication and the security controls enterprises need as AI agents become first-class actors.