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Simplify hybrid complexity and strengthen your security posture by managing users and groups natively in the cloud.
Nov 04, 2025
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Overview
In an era where cyber threats evolve at an unprecedented pace and artificial intelligence (AI) transforms business operations, Microsoft stands at the forefront with a comprehensive strate...
Nov 04, 2025
Welcome to our new Microsoft Sentinel blog series!
We’re excited to launch a new blog series focused on Microsoft Sentinel. From the latest product innovations and feature updates to industry recog...
Nov 03, 2025
In today’s evolving threat landscape, organizations increasingly rely on layered email security solutions to protect users and sensitive data. Microsoft supports and collaborates with Integrated Clou...
Nov 03, 2025Recent Discussions
Cannot update Case number in Microsoft Purview eDiscovery
I can no longer update the Case number under case settings in the new eDiscovery UI. I used to be able to update it via the externalId Graph endpoint but that appears to be deprecated. The error simply reads "update failed" - there is no additional information. Is anyone else having this problem?Sentinel to Defender webinar series CANCELLED, will be rescheduled at a later date.
The Sentinel to Defender webinar series has been cancelled. Please visit aka.ms/securitycommunity to sign up for upcoming Microsoft Security webinars and to join the mailing list to be notified of future sessions. We apologize for any inconvenience.
Defender for Endpoint - macOS scan takes 1 second
Hello, We use Defender for Endpoint on macOS deployed by Mosyle MDM. However, we noticed when user run quick or full scan that action takes 1 second and that is it - 0 files scanned. This used to work before; I happen to have a screenshot: Now, if I run scan from command line, again the same: We use config profiles from here: https://github.com/microsoft/mdatp-xplat/tree/master/macos/mobileconfig/profiles mdatp health output: Did anyone have this issue? Thanks!
Kql query that search reg key
Hay I created the next kql query but unfraternally i get O devices on the results : // Search for creation, modification, or deletion events for the specified ESU registry key DeviceRegistryEvents | where RegistryKey has_any (@"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SoftwareProtectionPlatform\ESU", @"HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SoftwareProtectionPlatform\ESU") | project Timestamp, DeviceName, ActionType, RegistryKey, RegistryValueName, RegistryValueData, InitiatingProcessFileName, InitiatingProcessCommandLine | sort by Timestamp desc Am I doing something wrong? Thanks Elad.
Hundreds of DSM-Synology NAS work files are intercepted by Defender as threats!
Hi everyone. . . Sorry, long... For a couple of days now, I've been experiencing an annoying, persistent, and unresolvable problem affecting the Synology Drive Client 3.5.2 working folder D:\.SynologyWorkingDirectory. I'm running Windows 11 Pro 64-bit v25H2, and a couple of days ago, I accidentally discovered that Windows Defender has become incredibly slow when launched from its taskbar icon. Once I opened Defender, it presented a report with HUNDREDS (!) of threats, all caused by (temporary?) files in the hidden working folder "D:\.SynologyWorkingDirectory." The vast majority of the threats were eliminated. However, a few were classified as "severe" and warned that Defender may not have been able to completely eliminate the threat. I'm almost certain these aren't real threats, partly because of my extreme care with my browsing habits and behavior, but primarily because there are hundreds of them and they're constantly being created, exclusively in the D:\.SynologyWorkingDirectory folder. Defender, for its part, constantly deletes them, making it incredibly slow, and opening its history is equally slow. I ran a thorough system scan with Defender, both online and offline, but nothing was found. I also ran a scan with MalwareBytes, and nothing was found, perhaps also because the files are quickly deleted by Defender. I therefore suspect that Windows Defender has arbitrarily classified Synology's temporary files as threats. Even deleting Windows Defender's history was a painstaking task due to numerous (!) failed attempts due to the low-level and operational protections in Windows 11 Pro 64-bit v25H2. The only solution was to boot WinRE from a Windows installation USB drive, then delete the scans folder (D:\ProgramData\Microsoft\Windows Defender\Scans) from DOS. I also had to obtain the Bitlocker key, but clearing the history is pointless because it continually recreates itself with new detections! I'm forced to pause Synology Drive Client v3.5.2. How can I get support for this issue? Regards . .
Duplicate file detection
Hi Community, I need to scan multiple windows file servers using Microsoft Purview and one of the asks is to detect and identify duplicate files on those. Can someone please guide how that can be accomplished. What functionality needs to be used and how to go about duplicate detection? Note that this is primarily duplicate finding assignment for files as in office documents and pdfs. Thanks.
MS Purview Data Map - Sensitivity Label - Atlas API
Hi Everyone, Can someone confirm if it’s possible to update the Sensitivity label column in the Microsoft Purview Unified Data Catalog using the Atlas API? Since Microsoft Fabric currently does not support the auto-labeling feature in the Data Map, can we apply sensitivity labels to Fabric assets in the catalog through the Atlas API? Regards, BanuMurali
Feature Request: DLP Controls for App Registrations Using Sites.Selected to Prevent PII/PHI Exposure
We’re using the Sites.Selected SharePoint API to restrict app access to specific sites, which is a great improvement over tenant-wide permissions. However, we’re increasingly concerned about the lack of native DLP enforcement at the app registration level—especially for AI-powered apps or integrations that may unintentionally access sensitive data. Does Microsoft offer any capability to safeguard against PII/PHI data transfer across the Graph API that can: Flag apps as restricted from accessing PII/PHI. Prevent apps from reading content labeled with sensitivity labels like “Confidential,” “PII,” or “PHI.” Enforce real-time inspection and blocking of Graph API calls that attempt to access sensitive data. Generate alerts and audit logs when apps approach or violate these boundaries. If not, are there plans to introduce these protections? Protection across all APIs is desirable, but currently our greatest concern are SharePoint APIs.Microsoft 365 Apps for Enterprise Security Baseline 2412; when available?
https://learn.microsoft.com/en-us/intune/intune-service/protect/security-baseline-v2-office-settings?pivots=v2306 is currently available in Intune. Microsoft already released the 2412 version via the Microsoft Security Compliance Toolkit. Unfortunately, this version is not available in Intune nyet. When can we expect that version to become available in Intune?XDR advanced hunting region specific endpoints
Hi, I am exploring XDR advanced hunting API to fetch data specific to Microsoft Defender for Endpoint tenants. The official documentation (https://learn.microsoft.com/en-us/defender-xdr/api-advanced-hunting) mentions to switch to Microsoft Graph advanced hunting API. I had below questions related to it: 1. To fetch the region specific(US , China, Global) token and Microsoft Graph service root endpoints(https://learn.microsoft.com/en-us/graph/deployments#app-registration-and-token-service-root-endpoints ) , is the recommended way to fetch the OpenID configuration document (https://learn.microsoft.com/en-us/entra/identity-platform/v2-protocols-oidc#fetch-the-openid-configuration-document) for a tenant ID and based on the response, the region specific SERVICE/TOKEN endpoints could be fetched? Since using it, there is no need to maintain different end points for tenants in different regions. And do we use the global service URL https://login.microsoftonline.com to fetch OpenID config document for a tenantID in any region? 2. As per the documentation, Microsoft Graph Advanced hunting API is not supported in China region (https://learn.microsoft.com/en-us/graph/api/security-security-runhuntingquery?view=graph-rest-1.0&tabs=http). In this case, is it recommended to use Microsoft XDR Advanced hunting APIs(https://learn.microsoft.com/en-us/defender-xdr/api-advanced-hunting) to support all region tenants(China, US, Global)?XDR Advanced hunting API region availability
Hi, I am exploring XDR advanced hunting API to fetch data specific to Microsoft Defender for Endpoint tenants. The official documentation (https://learn.microsoft.com/en-us/defender-xdr/api-advanced-hunting) mentions to switch to Microsoft Graph advanced hunting API. I had below questions related to it: To fetch the region specific(US , China, Global) token and Microsoft Graph service root endpoints(https://learn.microsoft.com/en-us/graph/deployments#app-registration-and-token-service-root-endpoints ) , is the recommended way to fetch the OpenID configuration document (https://learn.microsoft.com/en-us/entra/identity-platform/v2-protocols-oidc#find-your-apps-openid-configuration-document-uri) for a tenant ID and based on the response, the region specific SERVICE/TOKEN endpoints could be fetched? Using it, there is no need to maintain different end points for tenants in different regions. And do we use the global service URL https://login.microsoftonline.com to fetch OpenID config document for a tenantID in any region? As per the documentation, Microsoft Graph Advanced hunting API is not supported in China region (https://learn.microsoft.com/en-us/graph/api/security-security-runhuntingquery?view=graph-rest-1.0&tabs=http). In this case, is it recommended to use Microsoft XDR Advanced hunting APIs(https://learn.microsoft.com/en-us/defender-xdr/api-advanced-hunting) to support all region tenants(China, US, Global)?
Token Protection Conditional access policy is blocking access to PowerShell Modules.
Hi Everyone, Recently we have started implementing Microsoft token protection via CAP. We have created the policy based on the Microsoft documentation: https://learn.microsoft.com/en-us/entra/identity/conditional-access/concept-token-protection Everything is working fine for regular users, but for our admin accounts that require access to Powershell modules, they get this error when trying to access: I've confirmed this is linked to the token protection policy and no other policy is causing this behavior. The policy is configured in the following way: My question here is: How can I keep our admin accounts included on this policy without affecting Powershell access? Thank you for your help.Workplace Benefits Program (earlier meaning: home Use)
Hello, let me describe our current situation: Tenant A: our first tenant, should be decom. soon Tenant B: our new productive tenant On Tenant A we are able to use the Workplace Benefits Program. Unfortunatelly we have to decom this tenant. so we have created an new one, Tenant B. Enterprise Agreement was transfered well to the new, but one topic is missing, we couldn't transfer the existing workplace benefits from A to B. Perhaps someone here has been in the same situation and has found a solution? Thanks a lot. best regards, Markus
Latest Threat Intelligence (October 2025)
Microsoft Defender for IoT has released the October 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: 01757cbb8de8dfb10b140e0e6a1dfe41 For cloud connected sensors, Microsoft Defender for IoT can automatically update new threat intelligence packages following their release, click here for more information.Question malwares behavior
1) Does the behavior of the same malware on different PCs vary a lot? example: Trojan:Win32/Wacatac.C!ml PC 1 Trojan:Win32/Wacatac.C!ml, behavior: idle remains PC2 Trojan:Win32/Wacatac.C!ml, behavior: delete modify files in PC 2) Can a malware like Trojan:Win32/Wacatac.C!ml download other malware, let that perform actions, then delete itself—and would it evade future AV scans? Does it not leave traces to detect in the scan?Ingest IOC from Google Threat Intelligence into Sentinel
Hi all, I'm string to ingest IOCs from Google Threat Intelligence into Sentinel. I follow the guide at gtidocs.virutotal.com/docs/gti4sentinel-guide API KEY is correct. PS: I'm using standard free public API (created in Viru Total) Managed Identitity has been configured using the correct role. When I run the Logic APP, I received an HTTP error 403 "code": "ForbiddenError", "message": "You are not authorized to perform the requested operation" What's the problem ?? Regards, HAIssue when ingesting Defender XDR table in Sentinel
Hello, We are migrating our on-premises SIEM solution to Microsoft Sentinel since we have E5 licences for all our users. The integration between Defender XDR and Sentinel convinced us to make the move. We have a limited budget for Sentinel, and we found out that the Auxiliary/Data Lake feature is sufficient for verbose log sources such as network logs. We would like to retain Defender XDR data for more than 30 days (the default retention period). We implemented the solution described in this blog post: https://jeffreyappel.nl/how-to-store-defender-xdr-data-for-years-in-sentinel-data-lake-without-expensive-ingestion-cost/ However, we are facing an issue with 2 tables: DeviceImageLoadEvents and DeviceFileCertificateInfo. The table forwarded by Defender to Sentinel are empty like this row: We created a support ticket but so far, we haven't received any solution. If anyone has experienced this issue, we would appreciate your feedback. LucasSecure your data—Microsoft Purview at Ignite 2025
Security is a core focus at Microsoft Ignite this year, with the Security Forum on November 17, deep dive technical sessions, theater talks, and hands-on labs designed for security leaders and practitioners. Join us in San Francisco, November 17–21, or online, November 18–20, to learn what’s new and what’s next across data security, compliance, and AI. This year’s sessions and labs will help you prevent data exfiltration, manage insider risks, and enable responsible AI adoption across your organization. Featured sessions: BRK250: Preventing data exfiltration with a layered protection strategy Learn how Microsoft Purview enables a layered approach to data protection, including AI and non-AI apps, devices, browsers, and networks. BRK257: Drive secure Microsoft 365 Copilot adoption using Microsoft Purview Discover built-in safeguards to prevent data loss and insider risks as you scale Copilot and agentic AI. LAB548: Prevent data exposure in Copilot and AI apps with DLP Configure DLP policies to protect sensitive data across Microsoft 365 services and AI scenarios. Explore and filter the full security catalog by topic, format, and role: aka.ms/Ignite/SecuritySessions. Why attend: Ignite is your chance to see the latest Purview features, connect with product experts, and get hands-on with new compliance and data protection tools. Microsoft will also preview future enhancements for agentic AI and unified data governance. Security Forum (November 17): Kick off with an immersive, in‑person pre‑day focused on strategic security discussions and real‑world guidance from Microsoft leaders and industry experts. Select Security Forum during registration. Connect with peers and security leaders through these signature security experiences: Security Leaders Dinner—CISOs and VPs connect with Microsoft leaders. CISO Roundtable—Gain practical insights on secure AI adoption. Secure the Night Party—Network in a relaxed, fun setting. Register for Microsoft Ignite >Modernize security operations to secure agentic AI—Microsoft Sentinel at Ignite 2025
Security is a core focus at Microsoft Ignite this year, with the Security Forum on November 17, deep dive technical sessions, theater talks, and hands-on labs designed for security leaders and practitioners. Join us in San Francisco, November 17–21, or online, November 18–20, to learn what’s new and what’s next across SecOps, data, cloud, and AI—and how to get more from the Microsoft capabilities you already use. This year, Microsoft Sentinel takes center stage with sessions and labs designed to help you unify data, automate response, and leverage AI-powered insights for faster, more effective threat detection. Featured sessions: BRK235: Power agentic defense with Microsoft Sentinel Explore Microsoft Sentinel’s platform architecture, graph intelligence, and agentic workflows to automate, investigate, and respond with speed and precision. BRK246: Blueprint for building the SOC of the future Learn how to architect a modern SOC that anticipates and prevents threats using predictive shielding, agentic AI, and graph-powered reasoning. LAB543: Perform threat hunting in Microsoft Sentinel Dive deep into advanced threat hunting, KQL queries, and proactive investigation workflows to sharpen your security operations. Explore and filter the full security catalog by topic, format, and role: aka.ms/Ignite/SecuritySessions. Why attend: Ignite is your opportunity to see the latest innovations in Microsoft Sentinel, connect with experts, and gain hands-on experience. Sessions will also touch on future directions for agentic AI and unified SOC operations, as outlined in Microsoft’s broader security roadmap. Security Forum (November 17): Kick off with an immersive, in‑person pre‑day focused on strategic security discussions and real‑world guidance from Microsoft leaders and industry experts. Select Security Forum during registration. Connect with peers and security leaders through these signature security experiences: Security Leaders Dinner—CISOs and VPs connect with Microsoft leaders. CISO Roundtable—Gain practical insights on secure AI adoption. Secure the Night Party—Network in a relaxed, fun setting. Register for Microsoft Ignite >
