Cybersecurity is becoming harder to manage as threats grow more advanced and more frequent. IT teams are under pressure to detect attacks faster, reduce alert fatigue and keep their environments secure without adding unnecessary complexity. Microsoft Security Copilot aims to help with exactly that. It brings AI into daily security work so teams can investigate issues, understand threats and make decisions with far less effort.
This guide breaks down what Security Copilot is, how it works and what it means for small and mid-sized organizations and MSPs. If you’ve been wondering how to prepare for AI-driven security tools, this overview will help you get started.
What Security Copilot Is and Why It Matters
Microsoft Security Copilot is an AI assistant designed to simplify security operations. It acts like a virtual analyst that can examine your Microsoft 365 environment, highlight risks and generate clear recommendations. Instead of digging through dashboards and logs, you can ask questions in plain language and receive direct, actionable answers.
The tool combines signals from products like Microsoft Defender, Intune and Sentinel to provide a unified picture of your security posture. The goal is to make advanced security work accessible not only to analysts but also to admins and IT leaders who may not specialize in threat investigation.
Licensing and SCUs: What You Need to Run Security Copilot
To use Security Copilot, you need Microsoft 365 E5. This is currently the only SKU that includes the feature. The service runs on Security Compute Units, or SCUs, which you provision through Azure. SCUs are billed hourly and cost roughly four dollars per hour.
Microsoft offsets some of this cost by giving E5 customers a pool of included SCUs each month. For every 1,000 E5 licenses, you receive 400 SCUs. A tenant with 400 E5 users receives 160 SCUs, and one with 100 users receives 40.
If your usage goes beyond what’s included, you can add more SCUs manually. You can also scale them up and down throughout the day. Many teams allocate higher capacity during morning investigations and reduce it later to control costs. This approach helps you manage spend without limiting functionality.
Can Smaller Organizations and MSPs Benefit?
The E5 requirement makes Security Copilot a challenge for some small businesses and MSPs today. Even so, the direction is clear: AI-driven security is becoming standard across the Microsoft ecosystem. Defender, Intune and Entra already include AI-assisted features that don’t require E5.
This makes now a good time for SMEs and MSPs to learn how Security Copilot works, understand the licensing model and prepare for broader availability. As Microsoft refines the platform, it’s very likely more accessible licensing models will appear. Staying informed will help providers offer better guidance and remain competitive as clients expect more AI-powered security solutions.
How to Set Up Security Copilot
To get started, you need two things in place:
- Microsoft 365 E5 licensing
- An active Azure subscription linked to your tenant
Once that’s done, you can provision SCUs in the Azure portal. This determines how much compute capacity will be available to Security Copilot.
After provisioning, visit securitycopilot.microsoft.com and create a workspace. The workspace stores your prompts, investigations and summaries. From there you can begin working with AI agents, prompt books and custom prompts.
Prompt books are especially helpful for MSPs and IT teams because they let you standardize routine tasks. You can build repeatable workflows for things like weekly threat summaries, conditional access reviews or device compliance checks. This saves time and gives your team consistent results.
Security Copilot also includes specialized AI agents focused on key security areas. For example, the Conditional Access Optimization Agent reviews your policies and suggests improvements. These agents give you focused assessments without needing deep manual analysis.
You can also run your own prompts to investigate a user, review device status or get a quick health report of your environment. The assistant responds in clear language and explains its reasoning so you can take action quickly.
Controlling Costs: Practical Tips
SCUs are the main cost factor, so managing them is important. A common approach is dynamic scaling. Increase SCU capacity during active investigation periods and reduce it when workloads slow down. This prevents paying for unused compute.
Another key reminder: if you’re finished with testing or running a specific investigation, delete the SCU resource in Azure. Billing stops immediately when you remove it.
Deleting SCUs does not delete your workspace or investigation history. Your data remains available for 90 days, so you can pause usage without losing any work.
Final Thoughts
Security Copilot represents a major shift in how security teams operate. It reduces the manual effort involved in investigations, helps teams understand threats more quickly and creates a more unified security experience across Microsoft’s platform.
While the current licensing model puts it out of reach for some smaller organizations, the technology behind it is already shaping the future of the Microsoft security stack. Getting familiar with how it works now will make it easier to adopt as more flexible options arrive.
If you’re responsible for defending your environment or supporting clients, learning how to use AI-based tools like Security Copilot will put you in a stronger position as cybersecurity continues to evolve.
Salman Tariq
SalmanTechBlogs 
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