Azure Fundamentals
AZ-900The entry point. Cloud models, Azure architecture and the governance and cost tooling — enough to hold a sensible conversation about Azure before you touch the portal in anger.
Objective weighting
Microsoft security & Azure — articles and certification training
Microsoft retired AZ-500 on 31 August 2026. Its successor now scores Copilot data exposure, Entra Agent ID and Foundry agent guardrails — material that did not exist on the old blueprint. Plenty of prep still predates the change. The Lowdown Lab has been writing about this stack since 2023; the study guides are what that turned into.
Objective domains verified against Microsoft Learn — 15 Sep 2026.
Independent study material. Not affiliated with or endorsed by Microsoft.
The 2026 reshuffle
This is the actual retirement and revision calendar. If a guide you're reading was written before the date next to its exam, you're studying objectives that are no longer scored.
In production
Each guide is structured against Microsoft's published skills-measured breakdown and weighted the same way the exam is, so you spend your study time in proportion to what's actually scored. The numbering is the study path — fundamentals through architect.
The entry point. Cloud models, Azure architecture and the governance and cost tooling — enough to hold a sensible conversation about Azure before you touch the portal in anger.
Objective weighting
The infrastructure foundation most security candidates skip and then regret. Identity, storage, compute, virtual networking and monitoring — the prerequisite knowledge SC-500 assumes you have.
Objective weighting
The AZ-500 successor, and the reason this catalog exists. Adds Entra Agent ID, Copilot data exposure via Purview DSPM, Foundry agent guardrails and Defender for AI. Microsoft’s own practice assessment isn’t out yet.
Objective weighting
Designing identity, governance, data storage, business continuity and infrastructure solutions. Design-tradeoff drills with written justifications — the format the exam actually rewards.
Objective weighting
The expert-tier design exam, and the top of the path. Zero Trust strategy, regulatory compliance posture and security architecture across identity, data, applications and infrastructure.
Format
They're being written against the objectives above, and they'll go on sale when they're finished — not before. If you're sitting one of these exams, tell me which and I'll let you know the moment yours is ready.
From the Lab
The Lowdown Lab has been publishing on Azure, identity and the Microsoft security stack since 2023. The articles are free and they stay free — the study guides are the same work, organised against an exam blueprint.
The Azure services worth wiring into your day-to-day admin workflow, and the ones that just add tabs.
20 Feb 2023Getting a file share into production: identity, networking and the decisions that are hard to undo later.
08 Feb 2023What the orchestrator actually does for you, and where the abstraction stops being free.
Feb 2023Email-based attacks keep getting more sophisticated. The Defender features that actually move the needle.
Feb 2023Sizing, tiering and access design before you deploy — the planning half of the deployment story.
Jan 2023NSGs, ASGs, Firewall and Private Link — what each one is for and how they stack together.
Who writes the guides
I'm a security architect — Entra tenants, Defender and Sentinel deployments, vendor risk assessments against NIST CSF 2.0. These guides come out of the same reading I do to keep my own work current, which is why they track Microsoft's objective changes instead of lagging a year behind them.
A study guide written from a retired exam blueprint isn't a shortcut. It's a detour.
Every guide is dated and sourced. Each one opens with the Microsoft Learn revision date it was written against, so you can check for yourself whether it's current before you spend a weekend on it. When an objective domain moves, I re-cut the affected sections and reissue.
Guides are written in English. If you'd rather work through the material in Spanish, say so in the form below — I handle those personally.
Common questions
Get on the list
I'll let you know when your guide is ready. Tell me what you work on and where you're trying to get to, and I'll also tell you which exam fits and in what order — including whether you need a guide at all.
Team licensing and Spanish-language material go through this form too.