Microsoft Security Copilot

Microsoft Security Copilot is one of the most significant AI deployments in enterprise security — an LLM-powered assistant built on GPT-4 and trained on Microsoft's threat intelligence, which covers 65 trillion signals per day from Microsoft's global footprint.

## What Security Copilot Does

Security Copilot acts as an AI analyst in natural language: investigate incidents, summarize alerts, explain what a script does, and recommend response steps. Unlike generic LLMs, it's grounded in Microsoft's real-time threat intelligence and integrated with your actual security tools.

## Integration with Microsoft Security Stack

Security Copilot integrates natively with: - **Microsoft Sentinel** (SIEM/SOAR) — investigate incidents, run KQL queries in natural language - **Microsoft Defender** (endpoint/identity/cloud) — triage alerts, understand attack chains - **Microsoft Entra** (identity) — investigate suspicious sign-ins and permissions issues - **Intune, Purview, Defender for Cloud** — unified security posture questions

This native integration means Security Copilot has actual context about your environment — not just generic threat knowledge.

## Threat Intelligence Grounding

Security Copilot is grounded in Microsoft Threat Intelligence, which tracks 300+ threat actors, monitors 50+ ransomware groups, and processes 65 trillion security signals daily. When investigating an incident, it can identify which known threat actor a technique matches and what their known objectives are.

## Skill-Based AI

Beyond natural language, Security Copilot includes Promptbooks — pre-built investigation workflows that run in sequence. Common use cases: vulnerability impact assessment, reverse engineering malicious scripts, phishing email analysis, and incident post-mortems.

## Pricing

Security Copilot uses a compute-unit pricing model (Security Compute Units, SCUs). Provisioned through Azure at approximately $4/SCU/hour. Enterprise deployments typically provision 1-5 SCUs for analyst teams.