87,394 questions with Microsoft Security-related tags

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Is this a scam?

I have received the email below. Is it a scam? From: E-Mail Sync ******@optimum.net Sent: Monday, October 12, 2026 3:30 PM To: ******@communication.com ******@communication.com; ******@web.org ******@web.org Subject: From Microsoft: New Updates Regarding…

Microsoft Security | Microsoft Defender | Microsoft Defender for Office 365
asked 2026-10-13T21:20:36.4066667+00:00
James Scott 0 Reputation points
answered 2026-10-13T21:20:49.9533333+00:00

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1 answer

Microsoft Defender blocked by enforced App Control policy

Hello, I need help fixing Microsoft Defender on my personal Windows 11 Pro 25H2 laptop. Windows Defender is not running, and protection updates fail with error 800106ba. Starting the WinDefend service fails. Code Integrity Event ID 3077 shows that the…

Microsoft Security | Microsoft Defender | Other
asked 2026-10-11T14:39:21.15+00:00
Rainer Talosig 0 Reputation points
answered 2026-10-13T21:14:57.7033333+00:00
Rauh, Alexander 330 Reputation points
2 answers

Identities from old On-Prem Active Directory domain still visible in Defender Portal

Good day. We previously had an On-Prem Active Directory domain that has since been shutdown/decommissioned back in March 2026. However, the Defender portal still show these accounts and domain. It's possible proper clean-up / decommission to remove from…

Microsoft Security | Microsoft Defender | Microsoft Defender for Identity
asked 2026-10-12T10:39:41.2333333+00:00
Kalel 140 Reputation points
answered 2026-10-13T21:04:04.7933333+00:00
Rauh, Alexander 330 Reputation points
1 answer

Setting up Emails for Student Accounts

We are a Workforce Development School which teaches Office software but we do not qualify for the free educational program. We purchase codes for our students software. My question: We are always struggling to make email accounts because we get blocked…

Microsoft Security | Microsoft Authenticator
asked 2026-10-13T20:59:51.6966667+00:00
Melisa Meyers 0 Reputation points
answered 2026-10-13T21:01:17.4666667+00:00

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1 answer

No longer have my old phone to receive the verification code to log in. What do I do?

I no longer have my old phone to receive the verification code to log in. What do I do?

Microsoft Security | Microsoft Authenticator
asked 2026-10-13T20:13:57.7366667+00:00
Wayne Martin 0 Reputation points
answered 2026-10-13T20:14:13.3266667+00:00

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0 answers

o puedo acceder a Azure Portal con mi cuenta personal: MFA solicita 6 dígitos y Authenticator muestra 8

Hola, equipo de Microsoft. Puedo iniciar sesión normalmente en Outlook y superar la verificación por correo electrónico. Sin embargo, al entrar a Azure Portal, se me solicita un código de Microsoft Authenticator de 6 dígitos, mientras que la aplicación…

Microsoft Security | Microsoft Authenticator
asked 2026-10-13T20:09:24.8233333+00:00
Henrry Portilla 0 Reputation points
1 answer

I cannot get Authenticator to work after getting a new iphone

I'm stuck in a circle. In Outlook, it asks me to sign into my email and then asks me to approve the request in the authenticator app. Upon opening the app, it just shows me the EXACT same request screen. There is NO approval request. I've tried going…

Microsoft Security | Microsoft Authenticator
asked 2026-10-13T15:57:29.0066667+00:00
Cunningham, Kemp 0 Reputation points
answered 2026-10-13T19:41:01.4266667+00:00
Cunningham, Kemp 0 Reputation points
1 answer

login.microsoftonline.com returns HTTP 404 (empty body) to server-side token requests from one web host

We use WP Mail SMTP (Microsoft 365 / Outlook mailer, Microsoft Graph) on a WordPress site hosted with a shared web hosting provider. Interactive sign-in and admin consent complete successfully in the browser, but the server-side…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-10-13T19:25:21.7266667+00:00
Suryam Javvadi 0 Reputation points
answered 2026-10-13T19:26:16.74+00:00

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1 answer

How can I remove a tenant that I no longer have access to

My Azure account is currently a member of 2 tenants. I want to remove a tenant that I created with an email address that I no longer have access to, but I am a member of. Or can I be removed from that tenant. Or, can someone reassure me that members of…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2023-07-14T15:22:26.1966667+00:00
Tim Almond 5 Reputation points
commented 2026-10-13T18:59:12.3833333+00:00
Beat Bucher 0 Reputation points
1 answer

windows defender on windows 11 pro french

what is the latest version of windows defender on windows 11 pro french

Microsoft Security | Microsoft Defender | Other
asked 2026-10-13T18:50:21.8666667+00:00
Chan-Ninh TIEU 0 Reputation points
answered 2026-10-13T18:52:32.5366667+00:00
Chan-Ninh TIEU 0 Reputation points
0 answers

Will an Entra OAuth app registration remain usable after Azure Free Trial expires, without upgrading to pay-as-you-go?

Hello. Before signing up for an Azure free account, I need to confirm whether this specific setup can continue at zero additional cost. I am developing a personal Windows desktop application in C#/.NET. It will access my existing personal Hotmail and…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-10-13T18:29:08.8+00:00
Mi Correo 0 Reputation points
1 answer

Can you use advanced Filters, while expanding Manager field?

I am looking to try and create a microsoft Graph Call that will allow me to use the advanced filters, but also allow me to pull in the account's manager data. Does anyone have suggestions about doing this? I would prefer it to be done in one api call.

Microsoft Security | Microsoft Graph
asked 2026-10-13T17:42:25.83+00:00
Wolfe, Nick 0 Reputation points
commented 2026-10-13T18:08:09.3266667+00:00
Vasil Michev 128.4K Reputation points MVP Volunteer Moderator
2 answers

Trojan:Win32/CommandoA!ml detected on my computer, struggling to remove it

Hello, My Windows antivirus is detecting the virus in the title, and I can't figure out how to remove it. I've done the offline scan etc. but it keeps coming back.

Microsoft Security | Microsoft Defender | Other
asked 2026-08-18T12:02:01.9033333+00:00
Lorcan Knight 0 Reputation points
commented 2026-10-13T17:50:22.3266667+00:00
Mallika R 0 Reputation points
1 answer

Not able to access Workday

I am trying to access my workday. I put in my email address and password and then it asks me for the code on the Authenticator app. I never receive a code on the app so I’m never able to access Workday

Microsoft Security | Microsoft Authenticator
asked 2026-10-13T17:26:03.9266667+00:00
Gary Davidson 0 Reputation points
answered 2026-10-13T17:27:03.6566667+00:00

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1 answer

Microsoft Purview Disposition Management: API Feasibility for a Custom UI

We are developing a custom document-retention and compliance portal integrated with Microsoft Purview Records Management. We need users to perform the following native disposition-review actions from our custom UI without opening the Purview…

Microsoft Security | Microsoft Purview
asked 2026-10-13T16:31:51.6366667+00:00
Ashish Gore 0 Reputation points
answered 2026-10-13T16:48:36.5666667+00:00
Vasil Michev 128.4K Reputation points MVP Volunteer Moderator
1 answer One of the answers was accepted by the question author.

Entra passkey registration sends hints ["security-key"] on Linux, blocking synced passkeys (1Password)

We have a passkey profile that allows synced passkeys (no attestation, no AAGUID restrictions). Users can register 1Password passkeys from macOS, but not from Linux (Chrome and Edge): Security info > Add sign-in method > Passkey always opens the…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-10-09T11:39:09.97+00:00
David Salinas 0 Reputation points
accepted 2026-10-13T16:44:44.27+00:00
David Salinas 0 Reputation points
0 answers

AADSTS50027 on a federated client assertion whose signature verifies against the published JWKS

We exchange a short-lived RS256 JWT for an access token with client_credentials and a federated identity credential. Microsoft Entra returns AADSTS50027 (JWT token is invalid or malformed). The same assertion verifies with the key in the issuer JWKS, and…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-10-13T16:23:46.78+00:00
Ludovic V 0 Reputation points
edited the question 2026-10-13T16:24:22.6733333+00:00
Ludovic V 0 Reputation points
0 answers

A hacker got in my account and changed the password and emails associated with the recovery.

A hacker took my sons account in order to steal his minecraft account and in doing so took my microsoft account. I submitted the recovery with my phone number because by the time i entered in my email it said i didn't have an account. even though i was…

Microsoft Security | Microsoft Authenticator
asked 2026-10-13T16:12:10.4533333+00:00
fengles 0 Reputation points
0 answers

How do I get ahold of Azure support if I can't access Azure?

I think I used my personal account to replicate an external user at my last company and now I'm in a circular loop. I'm getting the following error whenever I'm on an Azure page (including support) which completely breaks my ability to use the webpage. …

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-10-13T16:03:15.6333333+00:00
Andre Gagne 0 Reputation points
1 answer One of the answers was accepted by the question author.

Need help changing my alias (@xboxlivefamily.com account alias)

I currently unable to change my primary alias on my Microsoft account. My account was made back in 2013 on the Xbox 360, and it has ...@xboxlivefamily.com as the domain. I do not want that as the email associated with the account anymore and would rather…

Microsoft Security | Microsoft Authenticator
asked 2025-07-04T01:08:51.2966667+00:00
Riley Colt 20 Reputation points
commented 2026-10-13T15:35:14.6566667+00:00
Jayden Drewis 0 Reputation points