Reference Architecture

Agentic SecOps on the Microsoft security stack: five layers, human-in-command at the top, data foundation at the base

▲Data & telemetry flows up

① Human-in-Command Layer

SOC Analysts & Threat Hunters

Judgment, escalation, and the decisions that warrant a human.

Security Strategy

Governance, policy, and roadmap: owns the loop.

② Agentic Reasoning Layer

Microsoft

Security Copilot

Reasoning engine across the stack.

Security Copilot Agents

Triage, phishing, alert handling.

Red / Blue / Purple Teaming Agents

Emulate, detect, close gaps.

③ Detection & Response Plane

Microsoft

Sentinel

SIEM / SOAR.

Microsoft

Defender XDR

Endpoint, identity, email, cloud.

Threat Intelligence Feeds

Fuel the loop with fresh TTPs.

④ Agent Governance & Identity Layer

Microsoft

Agent 365

Agent control plane.

Microsoft

Entra Agent ID

Non-human identities, least privilege.

Defender + Purview + Intune

Runtime protection, data security, blast-radius mapping.

⑤ Data & Telemetry Foundation

Sentinel Data Lake / Log Analytics

The system of record.

Data Provenance & Integrity Controls

Trust what the agents read.

Sandboxed, Egress-Controlled Execution

Contain the blast radius.

↻Continuous loop: detection & intel feed the agentic reasoning layer. Coverage compounds every cycle.