
How Many SCUs Does Security Copilot Actually Need? Sizing Capacity Without the Bill Shock
How many SCUs Security Copilot needs: provisioned versus overage, hourly billing, the E5 allocation per 1,000 licences, and avoiding capacity cliffs.
security · azure · data · the practical side
Security Copilot may already be switched on in your tenant if you’re on Microsoft 365 E5, with defaults you wouldn’t have picked. This series covers the unexciting part that decides whether it’s safe and affordable: who can use it, what it can see, and how much compute to put behind it.
Read the setup post first, because the access defaults are the thing to fix on day one. Then size the capacity from real usage rather than a round number picked on the first afternoon.
Parts appear below as they go live, newest at the top.

How many SCUs Security Copilot needs: provisioned versus overage, hourly billing, the E5 allocation per 1,000 licences, and avoiding capacity cliffs.

How to set up Microsoft Security Copilot: E5 auto-provisioning, prerequisites for provisioning capacity, SCUs, and the default roles to fix on day one.