# About

Hi, I'm **Olivier Mathieu** (a.k.a. *frog*), **security architect at [Wakers](https://www.wakers.fr/)**. I design and deploy Microsoft security for organizations: **Defender XDR**, **Microsoft Sentinel**, **Purview** and **Entra ID**.

Before that I spent several years in consulting and incident response on Microsoft 365, Entra ID, Active Directory and Azure. That's where most of the content here comes from: what attackers really do in a tenant, and how to catch them.

## What you'll find here

- **Microsoft 365 & Entra ID**: the attack matrix of a tenant, email security and hardening.
- **Compliance**: NIS2 and DORA mapped to Microsoft controls.
- **Tools and side projects**: PowerShell, Sysinternals, mobile forensics.

The blog is for SOC analysts, IT admins and anyone who has to defend a Microsoft 365 tenant.

## Certifications

[!badge SC-100] [!badge SC-200] [!badge SC-300] [!badge AZ-500] [!badge AZ-104] [!badge BTL1]

## Recommended resources

- [AADInternals](https://aadinternals.com/) by Dr. Nestori Syynimaa
- [Inversecos](https://www.inversecos.com/)
- [ROADtools](https://github.com/dirkjanm/ROADtools) by Dirk-jan Mollema

## Get in touch

[!button icon="link-external" text="LinkedIn"](https://www.linkedin.com/in/olivier-mathieu/)

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