🛡️Defender Tactical: Isolate a Threat Device During an Incident

In this episode of Defender Tactical, I walk you through how to isolate a compromised device in Microsoft Defender for Endpoint—right in the middle of an investigation.

When threats strike, every second counts. Isolating a device can help you:

🔒 Stop lateral movement in its tracks

⏳ Buy time to investigate safely

🛠️ Prevent the spread of malware to other endpoints

In this quick tutorial, you’ll learn:
✅ How to isolate a device from the Microsoft 365 Defender portal
✅ What the end-user sees when isolation is triggered
✅ How to un-isolate once remediation is complete
✅ What to do if Defender can’t release a device from isolation (and how to fix it)

If you’re managing incidents and want to be confident in your containment tactics, this video is for you.

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💬 Drop a comment if you have questions or use this in your own investigations!