Microsoft MVP, #MEM, #Security and #Automation. Technical Editor for m365securitybook.com. Security @ thecollective.eu. Tweets are my own

Joined January 2010
209 Photos and videos
Excited to be speaking again at a live event! Join me at MC2MC Connect in February next year!
21 Dec 2025
We’re thrilled to welcome @thijslecomte as our next speaker at MC2MC Connect in Antwerp on February 5th 🎙️ ➡️Curious about the agenda or ready to get your 🎟️ connect.mc2mc.be #MC2MC #ConnectMC2MC #ConnectMC2MC2026 #Connect #Collaborate #Create
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Thijs Lecomte retweeted
Protecting Effectively Against Ransomware bit.ly/4k52Vnk #Ransomware #Security #ActiveDirectory @thijslecomte
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Are you struggling to add the correct data into #MicrosoftSentinel? Check out my latest article on @Practical365, detailing some tips and tricks I use. This is the first article of a small series, focusing on adding networking data into Sentinel.
Practical Sentinel: Adding Networking Data to Microsoft Sentinel 👉 bit.ly/4cAObcI @thijslecomte #Sentinel #EntraID #Defender
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Excited to be taking the stage again, together with @LouisMastelinck to talk about phishing in Microsoft Teams!
12 Mar 2024
[1/2] 📢 Our next in-person event of 2024, MC2MC Live: The Final Frontier, is taking place on Wednesday, April 17th. We are thrilled to introduce our event line-up, featuring Jens Du Four, Hanna Engel, @thijslecomte, and @LouisMastelinck 🎟️ tinyurl.com/2rfeferb #MC2MC
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Just released a new blog talking about a new CA feature which I have been waiting on for a long time. This allows us to better protect our administrator users against token theft and opens up new ways to secure critical applications. 365bythijs.be/2024/02/27/a-n… #entraid #ca
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Going live with @LouisMastelinck in 10 minutes to talk about phishing attacks in Teams Join here => teamsbuzz.com/room2

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This weekend, I deep dived into the Microsoft hack to see how it happened and what we learned from it. I linked it to the @ENowConsulting 's Application Governance, which provides insightful recommendations into some common misconfigurations appgovscore.com/blog/insecur…
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Hey! Did you Activativate your Azure PIM role already?? #AzureActivity #MicrosoftSentinelSnafu
Has anyone else noticed in the Sentinel table AzureActivity that if a role is assigned to a resource using PIM the field here has a massive typo under the Target JSON field? I can't get this out of my head.
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Excited to be speaking at @TeamsNation in February with @LouisMastelinck We will be discussing a new type of Phishing using Microsoft Teams. What it is, how to protect against it and how to detect it. Join us in this free awesome event 👇 teamsbuzz.com/register

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Apps within Entra ID remain a security risk in a lot of companies... Check out the blog below on how you can protect your organization against it!
💥App Registrations are highly privileged & often used by #threatactors for privilege escalation attacks in #EntraID 👉 Microsoft MVP @thijslecomte explains how you can protect your organization with the proper permissions in place for attack prevention: enow.software/48vZi4u
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If you like in-depth articles, check out this one below! It covers, in great detail, how an attack in a cloud environment looks like and how to detect it. Including initial access, persistence, reconnaissance and privilege escalation.
I wrote a blog post about how Entra ID Joined and Hybrid Joined devices can be used to move to #entraid and #cloudsolutions, how to detect it, and what preventive controls you can use. 📜hybridbrothers.com/device-to… #microsoftsecurity #hybridbrothers
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As the year is coming to an end, I take some time to look back at what has happened. A lot of new products (outside of E5) A lot of copilot And some detection/reliability issues Looking forward to what 2024 brings!
2023 Microsoft Security Wrap-Up bit.ly/3GMe7ne @thijslecomte
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With the announcement of #MicrosoftDefenderXDR, I wanted to share my thoughts on some of the current pain points in automation with #MicrosoftDefender and #MicrosoftSentinel in this blog 'My wishlist for automation within Microsoft Defender XDR' 365bythijs.be/2023/12/05/my-…

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Easy going Friday morning. Baby Duty ✅ Coffee ✅ New blog in progress ✅
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Excited to be chosen as the Discussion Leader for 'Automation and SOAR' within the Security CCP. This also marks my first blog in two years, which is changing now. My goal is to bring new life into it, with a focus on automation within Microsoft Security. 365bythijs.be/2023/11/27/dis…
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If there is any requests in terms of topics, feel free to reply! Looking forward to hearing what people want me to explain/hear my thoughts about.
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Awesome PIM overview! I am still waiting for support to request a full authentication when activating a role. Some integration of authentication context and sign-in frequency everytime would solve this. This would solve using a stolen token to activate a role.
19 Nov 2023
Entra/Azure AD PIM may not be the security control you think it is. Here's five common mistakes, limitations, and misunderstandings you want to avoid tripping up with. Privileged Identity Management (PIM) – Common Microsoft 365 Security Mistakes Series: campbell.scot/pim-common-mic…
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Nathan is speaking true! The past few months, we have been dealing with quality issues in #MDO, inconsistent logging in #MDE and missing some basic features overall. Yet, all we see is development in products that most organizations don't desire at the moment.
Trying to catch up on all the announcements today I'm really struggling watching the complexity of all these offerings continue to increase, and we're putting all of our hope of managing it all into AI solutions
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End-users Antispam settings is an unknown but important policy to configure within Exchange Online! #Microsoft365Defender #MDO
How End-users Can Bypass Exchange Online Protection bit.ly/3tFjSQm @thijslecomte
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