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"Something went wrong. Primary and secondary data missing" when viewing email submission
Does anyone know what causes the "Something went wrong. Primary and secondary data missing" error when viewing an email submission in Microsoft Defender? It happens sporadically, but on I would guess 5% - 10% of our submissions.RSKadishOct 09, 2025Brass Contributor166Views0likes2CommentsMSSP Multi-Tenant Handling with Lighthouse and Defender XDR
Hello, As far as I know an MSSP providers, leverages Azure Lighthouse to call and access multiple customer workspaces, which allows to manage analytics across tenants. My questions are: In the case of moving to Defender XDR, how would this be possible in a multi-tenant MSSP scenario? Even with Lighthouse, how does Defender XDR avoid merging incidents/alerts across different customers when the same entities are involved? How does Defender XDR differentiate identical IOCs (same IP, hash, etc.) that appear in multiple customers? Can MSSPs customize correlation logic to prevent false cross-tenant merges? Content Ownership & Sharing Most MSSPs do not want to share their proprietary content (custom rules, detections, playbooks, analytics, etc.) with customers. How is Defender XDR approaching this requirement to ensure MSSPs can operate without exposing their intellectual property? Example: Customer Test 1 has a port scan incident from IP 10.10.10.10. Customer Test 2 also has a port scan incident from the same IP 10.10.10.10. In Sentinel today, these would remain separate. But in Defender XDR, would these two alerts risk being merged into a single incident because the same entity is detected across tenants? Thanks in advance for any clarification.smavrakisOct 09, 2025Copper Contributor185Views0likes2CommentsAdvanced Hunting Query Help
Hey y'all, I'm trying to write a query that can be used to determine the number of times an each IOC generated an alert (file hash, URL, IP, etc). I'm using the query builder tool within Defender, and I'm looking into the AlertInfo and AlertEvidence tables, but I'm not seeing where the link exists between each of these alert records and the corresponding IOC. For instance. If I submit a custom indicator, to Block a file identified by a sha256 hash, and that file gets correctly blocked, I want to see a count for the number of times that IOC value (the hash in this instance) triggered an alert. I'm hoping the community can help me determine whether I'm missing something glaringly obvious or if there's some documentation I haven't read yet. Thanks for reading!KnishArcticOct 09, 2025Copper Contributor50Views0likes3CommentsSecure Score - Vulnerability Exceptions Not Registering
I have followed the guide to configure the proper permissions to manage within Defender. Device groups have been created based off tags we applied to the devices, and the device groups register the expected number of devices. We apply an exception to the vulnerability recommendation based off the device group, looking at the individual device pages we can confirm the recommendation is excluded and it all appears to work as intended up to this point. The problem starts on the vulnerability dashboard. The recommendation shows it is in partial exception status however none of the statistics or data reflect this including our secure score. I can confirm making a global exception works as expected and we can see the score adjust properly. Has anyone experienced this before or have any pointers? We have been working at this for weeks trying different things without luck, we are ensuring to leave adequate sync times.AppleJaxOct 07, 2025Copper Contributor128Views1like1CommentDefender is missing logs for files copied to USB device on Mac devices
Hello, I am currently facing an issue with Defender not logging files copied to USBs. Using the KQL below, I can only see .exe files copied, but nothing when it comes to .pdf, .docx. .zip and other standard file extensions. Has someone come across this issue before? Any help is greatly appreciated let UsbDriveMount = DeviceEvents | where ActionType=="UsbDriveMounted" | extend ParsedFields=parse_json(AdditionalFields) | project DeviceId, DeviceName, DriveLetter=ParsedFields.DriveLetter, MountTime=TimeGenerated, ProductName=ParsedFields.ProductName,SerialNumber=ParsedFields.SerialNumber,Manufacturer=ParsedFields.Manufacturer | order by DeviceId asc, MountTime desc; let FileCreation = DeviceFileEvents | where InitiatingProcessAccountName != "system" | where ActionType == "FileCreated" | where FolderPath !startswith "C:\\" | where FolderPath !startswith "\\" | project ReportId,DeviceId,InitiatingProcessAccountDomain, InitiatingProcessAccountName,InitiatingProcessAccountUpn, FileName, FolderPath, SHA256, TimeGenerated, SensitivityLabel, IsAzureInfoProtectionApplied | order by DeviceId asc, TimeGenerated desc; FileCreation | lookup kind=inner (UsbDriveMount) on DeviceId | where FolderPath startswith DriveLetter | where TimeGenerated >= MountTime | partition hint.strategy=native by ReportId ( top 1 by MountTime ) | order by DeviceId asc, TimeGenerated desc | extend HostName = iff(DeviceName has '.', substring(DeviceName, 0, indexof(DeviceName, '.')), DeviceName) | extend DnsDomain = iff(DeviceName has '.', substring(DeviceName, indexof(DeviceName, '.') + 1), "") | extend FileHashAlgorithm = 'SHA256'Solved58Views0likes2CommentsLack of alerts in Sentinel
Hello, I am troubleshooting a lack of alerts and incidents in my Sentinel deployment. When I look at the Micrsoft Defender XDR connector, I see plenty of events like DeviceEvents, DeviceInfo, IdentityLogonEvents, etc. However, the entries for: SecurityIncident-- SecurityAlert-- AlertInfo-- AlertEvidence-- all show grey with a disconnected connector showing. I've been over the onboarding documentation several times and can't find what I'm missing. Has anyone else experienced this who can point me in the right direction of what to check? Thanks!RayOSep 25, 2025Copper Contributor415Views0likes6CommentsDeep Dive into Preview Features in Microsoft Defender Console
Background for Discussion Microsoft Defender XDR (Extended Detection and Response) is evolving rapidly, offering enhanced security capabilities through preview features that can be enabled in the MDE console. These preview features are accessible via: Path: Settings > Microsoft Defender XDR > General > Preview features Under this section, users can opt into three distinct integrations: Microsoft Defender XDR + Microsoft Defender for Identity Microsoft Defender for Endpoint Microsoft Defender for Cloud Apps Each of these options unlocks advanced functionalities that improve threat detection, incident correlation, and response automation across identity, endpoint, and cloud environments. However, enabling these features is optional and may depend on organizational readiness or policy. This raises important questions about: What specific technical capabilities are introduced by each preview feature? Where exactly are these feature parameters are reflected in the MDE console? What happens if an organization chooses not to enable these preview features? Are there alternative ways to access similar functionalities through public preview or general availability?bharatchaudhari89Sep 16, 2025Copper Contributor202Views1like0CommentsError getting Device Data
Have an issue with Device data not displaying in the Defender XDR portal. On the Assets/Devices menu I can search and find a device, but when I click in it to see the properties- the page displays only 50% of the time. Mostly it stays loading for about 30 secs then displays the error "Error getting Device Data" Occurs regardless of what permissions are applied, occurs regardless of the browser or incognito modes, regardless of who is logged in. Done basic troubleshooting from MS and even MS support cannot find the answer so far. Has anyone seen this before? CheersSolvedDan_ReichenbachSep 07, 2025Copper Contributor283Views0likes2CommentsFirewall Rules programming with Defender XDR
We have our devices onboarded to Defender for Endpoint, and want to program Firewall Policy and Firewall Rules Policy using Defender Onboarding. We know that we can onboard devices to Intune and use Intune MDM to program rules. But, we don't want a full blown MDM setup or license for just firewall programming. Is there a deployment scenario where we can do firewall programming just using defender machines. Any help is really appreciated.SolvedthisisbhaskarSep 07, 2025Copper Contributor251Views0likes1CommentImporting Purview roles into XDR RBAC
I want to activate Email & collaboration into XDR RBAC, so in XDR RBAC, I go and "choose roles to import" and I see the built-in Purview eDiscovery Manager role. Ok, fine, so I choose to import it into XDR RBAC and assume that my two groups of users in that role group (eDiscovery Managers (Sally and Sue) and eDiscovery Admins (Bob)) would be different. Sally and Sue can only manage their own cases and Bob can manage all cases. Different roles. But after it imports, there's only 1 role: eDiscovery Manager and all my users are in there - Sally, Sue and Bob with "Raw data (Email & collaboration) " - both read permissions are selected. But that's it. Question 1) I'm confused on why the eDiscovery role is being imported into XDR RBAC and if that means that over in Purview, after I activate the "Defender for Office365" workload in XDR RBAC - will something change with what Sally and Sue and Bob can do in Purview eDiscovery? Will I still be managing my eDiscovery users in Purview roles for when I need to add Billy to the list of eDiscovery Admins? Question 2) I see that the other Purview role groups I have users assigned (Audit Manager and Organization Management as well as a custom "Search and Purge" role group) were also imported into XDR RBAC permissions and roles but yet aren't applicable until I activate the workload. Wondering what exactly will happen when I activate the Email & collaboration workload. Will anything negative happen to the PIM groups I gave the Purview role groups to? Would I then need to clean anything up over in Purview roles after I activate the workload in XDR RBAC? This isn't clear at all what to do after I activate the email and collaboration workload and can I just undo it if it messes anything up?SolvedKayZeeBeeSep 07, 2025Copper Contributor206Views0likes1Comment
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