86,613 questions with Microsoft Security-related tags

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MFA Login Issue

One of our users is currently experiencing an issue while attempting to log in to the Microsoft Admin Centre. The user is not receiving the authentication code in the Microsoft Authenticator app, which is preventing access to the portal.

Microsoft Security | Microsoft Authenticator
asked 2026-09-07T10:18:31.1166667+00:00
Malarvannan K V 0 Reputation points
answered 2026-09-07T10:18:48.52+00:00

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0 answers

Intune device enrolment for Hybrid AD joined machine

Facing issues while enrolling a machine(Hybrid join) to Intune via GPO, however the machine shows the MDM URL's correctly checked through dsregcmd /status. Still the machine is not enrolling over Intune Portal. Checked the Hybrid join-SCP…

Microsoft Security | Intune | Enrollment
asked 2026-09-07T08:58:23.89+00:00
Gaurav Nigota 0 Reputation points
commented 2026-09-07T10:07:38.76+00:00
Rahul Jindal 11,721 Reputation points
1 answer

I need to talk to a support agent

I was talking to a support agent and my phone was cut off. Can some one call me?

Microsoft Security | Microsoft Defender | Other
asked 2026-01-25T21:48:24.6033333+00:00
Kathleen Lavall 10 Reputation points
commented 2026-09-07T08:52:46.3066667+00:00
Diana Killi 0 Reputation points
1 answer

Junk email validation error. Value: ******@domain.com

Hello I have an end user who logs into Microsoft Defender to look at his quarantined emails. When he tries to allow or block ANY address, he gets a message "Junk email validation error. Value: (Random email address)". The email address in the…

Microsoft Security | Microsoft Defender | Microsoft Defender for Cloud
asked 2025-09-17T13:49:32.2033333+00:00
James Dunne Admin 10 Reputation points
commented 2026-09-07T08:24:11.8633333+00:00
JeffR 21 Reputation points
1 answer

O365 apps signing from IOS device detected as MAC device

We have configured our conditional access policies to block access for macOS and Windows devices that are not connected to the domain. We have also whitelisted iOS and Android devices to allow their access. However, we noticed that the Entra ID sign-in…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-09-07T08:10:01.42+00:00
Jahfar 0 Reputation points
answered 2026-09-07T08:10:16.4166667+00:00

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1 answer

Request for Microsoft Confirmation – Local AD User Profile with Intune

Dear Microsoft Support Team, Greetings. We would like to seek your guidance and confirmation regarding the following requirements in our customer's Microsoft 365 Business Premium environment. Local AD User Profile Requirement – Intune Policy…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-09-07T02:12:57.0133333+00:00
Ganesh Kitte 0 Reputation points
answered 2026-09-07T08:08:51.1466667+00:00
Sandeep Hijam 0 Reputation points
1 answer

Windows Autopilot Setup Fails After Motherboard Replacement

Issue Description After a motherboard replacement, the PC was reset, but the Windows Autopilot initial setup cannot be completed. Error Code 80180014

Microsoft Security | Windows Autopilot
asked 2026-09-07T07:50:19.6466667+00:00
Owatari, Fumitaka 0 Reputation points
answered 2026-09-07T07:50:38.16+00:00

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1 answer

URGENT Unable to Access Entra/Azure/Admin Center - Request for Recovery

Hi Support Team, I’m currently unable to access my account across Microsoft Entra, Azure Portal, and the Microsoft Admin Center. It appears that I have lost access to these services, and I may also be unable to access some other services associated with…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-09-07T06:57:14.8566667+00:00
Rakesh Gondaliya 0 Reputation points
commented 2026-09-07T07:25:45.3933333+00:00
Rakesh Gondaliya 0 Reputation points
1 answer

Lost Microsoft Authenticator and cannot access Hardware Center Dashboard

Tenant: commotech.onmicrosoft.com Account: ******@commotech.onmicrosoft.com I previously used this account to access Microsoft Hardware Center Dashboard for WHQL driver submissions. After replacing my mobile phone, I lost access to Microsoft…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-09-07T07:17:01.61+00:00
Andy Tong 0 Reputation points
answered 2026-09-07T07:23:30.0733333+00:00
Andy Tong 0 Reputation points
0 answers

Intune managed and Azure Arc server for Entra ID only authentication

Currently, I only have one AD Domain in the forest called company.com, and there are no plans to create multiple AD domains to separate the production corporate domain from the management AD domain. Is it possible to deploy a standalone Windows Server…

Microsoft Security | Microsoft Entra | Other
asked 2026-09-07T06:46:15.6366667+00:00
EnterpriseArchitect 6,391 Reputation points
2 answers

SmartScreen Reputation Reset Following EV Certificate Renewal — Requesting Engineering Review

Dear Microsoft SmartScreen & Windows Defender Application Reputation Team, I am reaching out regarding a SmartScreen reputation issue that is impacting our software distribution — one that I believe warrants immediate attention from your engineering…

Microsoft Security | Microsoft Defender | Other
asked 2026-05-23T14:35:14.0466667+00:00
Devender Prakash 0 Reputation points
answered 2026-09-07T06:32:14.0833333+00:00
Daedalus Tech P/L 0 Reputation points
0 answers

azure billing

My Azure/Entra tenant associated with my Azure subscription was deleted. My credit card has been charged by Azure, but I can no longer access the Azure portal or create an Azure support request because I receive error AADSTS50020. I need Azure…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-09-07T06:22:03.05+00:00
Sahil Patil 0 Reputation points
0 answers

What is the supported OnMessageSend pattern when updating and sending an Outlook draft through Microsoft Graph in New Outlook for Windows?

What is the supported OnMessageSend pattern when updating and sending an Outlook draft through Microsoft Graph in New Outlook for Windows? We are evaluating an Outlook Web Add-in using the Smart Alerts OnMessageSend event in New Outlook for Windows,…

Microsoft Security | Microsoft Graph
asked 2026-09-04T14:41:56.8933333+00:00
Nitin Chakre 0 Reputation points
edited the question 2026-09-07T04:31:40.9466667+00:00
Nitin Chakre 0 Reputation points
0 answers

Authenticator lockout

I’m completely locked out of the Authenticator app on my phone and am not able to get logged into any associated apps which require the Authenticator. I got a new phone and when I try to log into the app, I’m not shown a code to type in.

Microsoft Security | Microsoft Authenticator
asked 2026-09-07T04:16:04.23+00:00
Christopher Bolton 0 Reputation points
1 answer

WinSxs corrupt

The WinSxS component store has deeper corruption The servicing stack is damaged DISM can’t access the repair source it needs A pending update is blocking repairs what is the step by step fix plz

Microsoft Security | Microsoft Authenticator
asked 2026-09-07T04:05:14.8566667+00:00
Al T 0 Reputation points
answered 2026-09-07T04:05:42.3966667+00:00

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1 answer

Deploying Windows Hello for business for EntraID Hybrid devices

We are planning to adopt Windows Hello for Business (WHfB) as a passwordless/passkey authentication method due to Microsoft's deprecation of weaker authentication methods such as SMS and voice. WHfB is already deployed via Intune in our environment, and…

Microsoft Security | Intune | Security
asked 2026-09-07T04:00:56.69+00:00
Saeed Ahmad 22 Reputation points
answered 2026-09-07T04:01:19.9466667+00:00

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0 answers

My Azure account is locked. How can I unlock it?

Hi, My Azure account shows the message: “Your account has been locked. Please contact support to unlock your account, then try again.” My personal Microsoft account works normally, but I get this error when switching to my Default Directory in Azure. I…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-09-07T02:20:40.09+00:00
Alex 0 Reputation points
commented 2026-09-07T03:55:21.48+00:00
Sandeep Hijam 0 Reputation points
0 answers

Sole Global Admin locked out of Entra ID tenant — "Account recovery has been blocked", no aka.ms link shown

I'm the sole Global Administrator of a Microsoft 365 / Entra ID tenant for my business (custom domain: tenettech.com.au). I'm now completely locked out and cannot find a self-service path forward. What happened: I normally sign in using a one-time…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-09-07T03:54:32.2266667+00:00
Ken Zou 0 Reputation points
1 answer

Invitations are blocked for this directory due to suspicious activity. Please contact Microsoft support for help.

We have been creating an application and inviting a pilot set of users (one by one) using invitations for months without any issues. Today, were trying to add in around 800 users so that they could access our application. After adding in users (98…

Microsoft Security | Microsoft Entra | Microsoft Entra External ID
asked 2026-04-30T11:57:11.3333333+00:00
Manek Ravi 5 Reputation points
commented 2026-09-07T03:10:22.0533333+00:00
dvibe 0 Reputation points
0 answers

B2B guest invitations are blocked for this tenant due to suspicious activity

Hello Microsoft Support, We are experiencing a critical issue with B2B guest invitations in our Microsoft Entra ID tenant. As part of a legitimate customer onboarding / SSO rollout, we invited a large number of external users for our client organisation.…

Microsoft Security | Microsoft Entra | Microsoft Entra External ID
asked 2026-09-04T05:04:08.3466667+00:00
dvibe 0 Reputation points
commented 2026-09-07T03:08:07.2366667+00:00
dvibe 0 Reputation points