Journey to Passwordless Authentication Might Include Some Bumps
Microsoft recommends passwordless authentication to help secure Microsoft 365 tenants. The latest is synced passkeys, something that apparently leads to “syncability,” whatever that might mean. In any case, after some struggles, I managed to enable synched passkeys for my iPhone and then started to consider how to remediate user accounts that are flagged with a high-risk (compromised) status when they can’t simply update their password. https://office365itpros.com/2025/12/04/passwordless-authentication/
Nested App Authentication (NAA) token to protect middle-tier server
I'm working on an outlook addin and want to use the NAA accesstoken to validate the user on an api running on a php webserver. The addin runs as a taskepane (created with yo office) with the app only manifest. I have setup NAA to do Microsoft graph calls on behalf of the user. I have used this guid to setup NAA (copy/past) https://learn.microsoft.com/en-us/office/dev/add-ins/develop/enable-nested-app-authentication-in-your-add-in I have setup a php server (not in Microsoft infrastruktur) for a simple API, that handlers MySQL calls and app only calls to Microsoft graph. The php api authenticate itself with a client secret from the Azure app registration. Both are working as expected. Can i use the accesstoken from the NAA, to authenticate the user on the php server? If it can be done how do I validate the token?
Azure AD Health Failing
I am on the latest version of Azure AD Connect (2.5.79.0)... There are no network/DNS/connectivity issues at our site, it seems to me that Azure AD Health Service is having trouble because the endpoint is experiencing a service issue.. Is anyone else having the same problem with failure alerts/etc? I checked by running "Test-MicrosoftEntraConnectHealthConnectivity -Role SYNC" command, the stack trace throws an undocumented error number and complains of rate limiting issues... smells like the server is being overwhelmed or there are other issues slowing down the endpoint/service with the consequence that connections are piling up causing this error: Connectivity Test Step 1 of 2: Testing dependent service endpoints begins ... AAD CDN connectivity is skipped. Connecting to endpoint https://login.microsoftonline.com Endpoint validation for https://login.microsoftonline.com is Successful. Connecting to endpoint https://s1.adhybridhealth.azure.com/providers/Microsoft.ADHybridHealthService/diagnostics/version Endpoint validation for https://s1.adhybridhealth.azure.com/providers/Microsoft.ADHybridHealthService/diagnostics/version is Successful. Connectivity Test Step 1 of 2 - Testing dependent service endpoints completed successfully. Connectivity Test Step 2 of 2 - EventHub data upload procedure begins ... Tenant Id is successfully collected during agent registration. Server rejected Eventhub data upload, here is the exception: Microsoft.ServiceBus.Messaging.ServerBusyException: The request was terminated because the entity is being throttled. Error code : 50002. Sub error : 101. Please wait 4 seconds and try again. To know more visit https://aka.ms/sbResourceMgrExceptions and https://aka.ms/ServiceBusThrottlingS:N:ADHSPRODWUSEHSYNCIA:EVENTHUB:ADHSPRODWUSEHSYNCIA~22527,CL:30,CC:32,ACC:356250,LUR:WinEnd,LUT:2025-10-08T03:03:12.2035867Z,RC:1 TrackingId:<<< anonymized tracking ID>>> 0, SystemTracker:adhsprodwusehsyncia:eventhub:adhsprodwusehsyncia~22527, Timestamp:2025-10-08T03:03:13 at Microsoft.ServiceBus.Common.ExceptionExtensions.ThrowException(Exception exception) at Microsoft.ServiceBus.Common.AsyncResult.End[TAsyncResult](IAsyncResult result) at Microsoft.ServiceBus.Messaging.EventHubSender.Send(EventData data) at Microsoft.Identity.Health.AgentV1.ConfigurationPowerShell.TestAzureADConnectHealthConnectivity.TestInsightServiceDataUploadProcedure() Azure AD Connect Health agent could not communicate to the Health Service using port 5671. As a result, agent communication will fall back to use port 443, but use of port 5671 is recommended. Please allow outbound communication using port 5671. Tenant Id is successfully collected during agent registration. Server rejected Eventhub data upload, here is the exception: Microsoft.ServiceBus.Messaging.ServerBusyException: The request was terminated because the entity is being throttled. Error code : 50002. Sub error : 101. Please wait 4 seconds and try again. To know more visit https://aka.ms/sbResourceMgrExceptions and https://aka.ms/ServiceBusThrottlingS:N:ADHSPRODWUSEHSYNCIA:EVENTHUB:ADHSPRODWUSEHSYNCIA~22527,CL:30,CC:32,ACC:356837,LUR:IncomingUsage_ADHSPRODWUSEHSYNCIA-5,LUT:2025-10-08T03:03:54.9448143Z,RC:1 TrackingId:<<< anonymized tracking ID>>>, SystemTracker:adhsprodwusehsyncia:eventhub:adhsprodwusehsyncia~22527, Timestamp:2025-10-08T03:04:00 at Microsoft.ServiceBus.Common.ExceptionExtensions.ThrowException(Exception exception) at Microsoft.ServiceBus.Common.AsyncResult.End[TAsyncResult](IAsyncResult result) at Microsoft.ServiceBus.Messaging.EventHubSender.Send(EventData data) at Microsoft.Identity.Health.AgentV1.ConfigurationPowerShell.TestAzureADConnectHealthConnectivity.TestInsightServiceDataUploadProcedure() Azure AD Connect Health agent could not communicate to the Health Service using port 5671. As a result, agent communication will fall back to use port 443, but use of port 5671 is recommended. Please allow outbound communication using port 5671.Profile photo component adds unwanted overlay
Component https://myaccount.microsoft.com Run command: ms-settings:yourinfo Environment Profile picture uploaded through https://myaccount.microsoft.com Profile picture uploaded through Run command (WIN+R): ms-settings:yourinfo Retrieved via Microsoft Graph SDK / Graph REST API endpoint /v1.0/me/photos/$value Steps to Reproduce Go to https://myaccount.microsoft.com. Upload a new profile picture (no presence, badge, or branding requested). Retrieve the profile picture using Microsoft Graph endpoint: GET https://graph.microsoft.com/v1.0/me/photos/$value Render the image in the client application. Expected Result The raw profile photo is shown exactly as stored—no overlays, rings, badges, or branding. Actual Result The component renders an overlay (e.g., presence badge/ring/branding) on top of the photo, altering the image. Impact Users see altered profile photos, leading to inconsistencies with expectations. Breaks brand/UX design guidelines that rely on unmodified profile images. Severity Medium–High (affects identity consistency across apps using Graph). Notes This happens even though no overlay option was requested in either the upload or retrieval flow. Alternative: Steps to Reproduce and working as expected Run command (WIN+R): ms-settings:yourinfo Upload a new profile picture (no presence, badge, or branding requested). Retrieve the profile picture using Microsoft Graph endpoint: GET https://graph.microsoft.com/v1.0/me/photos/$value Render the image in the client application. Expected Result The raw profile photo is shown exactly as stored—no overlays, rings, badges, or branding. Actual Result The raw profile photo is shown exactly as stored—no overlays, rings, badges, or branding.
My Azure login is stuck at MFA and cannot proceed
In August, I was still able to log in to Azure, and by logging in through GitHub I could bypass 2FA. But now, no matter how I try, logging in via GitHub always requires 2FA. I can’t access my Azure account anymore—nothing works. The system prompts me to use Microsoft Authenticator to confirm a two-digit code in real time. My Microsoft Authenticator on my iPhone is logged into the same Microsoft account, but I’m not receiving any verification requests for Azure login. No matter how much I refresh, nothing shows up. I’ve already updated the Microsoft Authenticator app to the latest version from the App Store. However, my personal Microsoft account works fine and can log in without any issues.TAP Question
Hi All I hope you are well. Anyway, I'm looking for some clarification over Temporary Access Passes (TAP) as our testing seems to reveal some different results from those listed in the MS documentation. Here's the scenario's. My understanding: Require MFA policy deployed via Conditional Access New user F3 user starts Issue TAP to user where they can then setup MFA themselves via My Security Info etc Testing results: Require MFA policy deployed via Conditional Access New user F3 user starts User can setup MFA themselves via MS Auth app on a mobile device or via My Security Info in a browser MS TAP Info page: "The most common use for a TAP is for a user to register authentication details during the first sign-in or device setup, without the need to complete extra security prompts." Ref: Configure a Temporary Access Pass in Microsoft Entra ID to register passwordless authentication methods - Microsoft Entra ID | Microsoft Learn Have I missed understood something here and if a new user can indeed still setup MFA is there any real need for a TAP for first time user? Info appreciated. SK
Token replay question
I had a case of a user being phished and their token being used in a replay attack. The replay appeared in the sign in logs from a different IP address to the "true" users IP. I then saw activity on the account originating from the original IP until we killed the session a few hours later. I had someone suggest that in a token replay the M365 audit\activity logs and Entra ID signing logs will show the original persons IP, not the attackers. Can anyone confirm this?CA policy for corporate devices
I would like to create a conditional access policy to block all non corporate devices from accessing Office 365 resources. I created a policy: Applies to -> User Group Applies to -> all resources Applies to -> Win 10 Filter for devices exception-> Ownership: company & trust type: Entra Hybrid joined. Action: block The above works fine for office desktop login, i.e. blocks non corporate devices and allows corporate devices. However, a side effect is that sign ins from browser on a corporate device is still blocked.User with hundreds of Interactive Sign-In log entries that are "Interrupted"
I have one user in our organization that has hundreds of Interactive Sign-in logs in EntraID that are marked as "Interrupted". I don't even know where to start with the user. Does anyone have a recommendation for isolating the cause of these logs? Recent entries are 95% related to Office Online Core SSO application.
Entra-ID Privileged Identity Management for Groups
We have used PIM for groups to assign certain Azure Security groups to eligible users. For example a group which provides the contributor role to a certain subscription. This group is added in PIM for groups, and eligible users have been assigned to the group, in which they can provide themselves with the privileges if required to do so for maximum 8 hours. However, when we assign a user to a PIM protected group, then there is no way to tell from the user's properties, that the user has been assigned (eligible) to a PIM protected group. Therefore wouldn't it be better to create PIM groups and add the assigned user as a member of a PIM group, and assign the PIM group as eligible to the PIM protected group? Then you would able to see from the Groups list if the user is illegible for any PIM groups.
