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Save the date - January 26, 2026 - AMA: Secure your endpoints with policy and Microsoft Defender
Save the date for January 26 at 8:00 AM PT! Have questions about using Microsoft Intune to enforce device compliance? Curious how to configure devices to help prevent security breaches and limit the impact of threats? Ask Microsoft Anything (AMA) about integrating Microsoft Defender for Endpoint with Microsoft Intune at Tech Community Live! Product teams will be answering your questions live and in chat. Get tips using policy to onboard devices, define risk level, block non-compliant devices from accessing corporate resources, and more. Go to aka.ms/AMA/SecureEndpoints to save the date and add this event to your calendar!
MS Defender setting
Hello, I have a question. I'm not an English-speaking country, so please understand any shortcomings. I'm trying to block or alert on specific URLs in Microsoft Defender > Settings > Endpoint > Rules > Indicators. I've completed the setup, but I'd like to customize the screen that appears on the webpage when an alert is triggered. Is there a way to do this? Thank you in advance for your help.
Using MDE (Passive Mode) with Palo Alto Cortex XDR to enable Defender for IoT (Enterprise IoT)
Hi everyone! I’m working with a customer that uses Palo Alto Cortex XDR as their primary EDR. We want to leverage Microsoft Defender for IoT specifically for Enterprise IoT (not OT/ICS). I have a few questions: MDE in Passive Mode as a sensor: Can Microsoft Defender for Endpoint (MDE) running in Passive mode act as a sensor to enable Enterprise IoT discovery/monitoring for Defender for IoT? Are there any feature limitations when MDE is not the primary EDR? Appliance sensor in Enterprise IT: If we cannot use the MDE agent, is it supported to deploy the Defender for IoT appliance sensor in an enterprise IT network (e.g., offices/campuses) to cover Enterprise IoT use cases? Coexistence / Complementary sensors: Is it possible (and recommended) to run the appliance sensor alongside MDE (sensor) to complement coverage/features? Any guidance on architecture, data overlap/deduplication, or licensing implications?
Alert Tuning (formerly Alert Suppression) Issues
Hello all! I am managing a Microsoft Defender instance and I have created a Custom Detection Rule. I want to tune this Alert so it auto-resolves in ALL scenarios (any host , any user). I have tried using Alert Tuning like so: I have selected ALL service sources , scope is All organization, condition is Alert:Custom and must match Alert Title which is the title of the generated alerts as taken from Advanced Hunting to make sure it is an exact match. I have tried using wildcards in Alert title, adding severity as another indicator, tried doing it directly from a triggered alert as well as from Alert Tuning from settings. Nothing has worked so far. Any input or insights would be greatly appreciated. Cheers!
Latest Threat Intelligence (December 2025)
Microsoft Defender for IoT has released the December 2025 Threat Intelligence package. The package is available for download from the Microsoft Defender for IoT portal (click Updates, then Download file). Threat Intelligence updates reflect the combined impact of proprietary research and threat intelligence carried out by Microsoft security teams. Each package contains the latest CVEs (Common Vulnerabilities and Exposures), IOCs (Indicators of Compromise), and other indicators applicable to IoT/ICS/OT networks (published during the past month) researched and implemented by Microsoft Threat Intelligence Research - CPS. The CVE scores are aligned with the National Vulnerability Database (NVD). Starting with the August 2023 threat intelligence updates, CVSSv3 scores are shown if they are relevant; otherwise the CVSSv2 scores are shown. Guidance Customers are recommended to update their systems with the latest TI package in order to detect potential exposure risks and vulnerabilities in their networks and on their devices. Threat Intelligence packages are updated every month with the most up-to-date security information available, ensuring that Microsoft Defender for IoT can identify malicious actors and behaviors on devices. Update your system with the latest TI package The package is available for download from the Microsoft Defender for IoT portal (click Updates, then Download file), for more information, please review Update threat intelligence data | Microsoft Docs. MD5 Hash: 5c642a16bf56cb6d98ef8b12fdc89939 For cloud connected sensors, Microsoft Defender for IoT can automatically update new threat intelligence packages following their release, click here for more information.Microsoft Defender for Endpoint for Vulnerability Management and Reporting
Hi All, We’re currently using Rapid7 for vulnerability management and reporting, but we’re actively evaluating the possibility of moving to Microsoft Defender for Endpoint going forward. We’d like to better understand how to properly leverage Defender for Endpoint for vulnerability management and reporting. If this means using custom reports—such as building dashboards in Power BI—we’re definitely open to that approach. At a high level, we’re looking for guidance on best practices and the right direction to meet the following requirements: Ongoing vulnerability tracking and remediation Clearer reporting on vulnerability trends and areas needing improvement Breakdown of vulnerabilities by severity (Critical, High, Medium, Low), grouped by aging buckets (e.g., 30, 60, 90 days) Defender Secure Score reporting over time (30, 60, and 90-day views) Visibility into non-compliant devices in Intune, including devices in grace period and PCs that have checked in within the last 14 days Any recommendations, examples, or pointers to documentation or reporting approaches would be greatly appreciated. Thanks in advance, Dilan
MS Defender 101.25102 update error
I have been trying to update MS Defender for several days now and without luck. I am on a iMac M3 with macOS 26.1. I tried removing and reinstalling the app, but it seems that the uninstall script does not remove the app at all. Yes, I did restart the machine. Does anyone have a solution?
