80,514 questions with Microsoft Security-related tags

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Lost Access to Microsoft 365 Admin account Due to Authenticator Device Failure

Hello, İ am unable to access the Microsot 365 Admin Center because my Microsoft Authenticator app was configured on my previous phone, and that phone is now broken and no longer turns on. i no longer have access to the Authenticator app, so I cannoot…

Microsoft Security | Microsoft Authenticator
asked 2026-03-06T10:03:04.4233333+00:00
Azər 0 Reputation points
answered 2026-03-06T10:03:23.6166667+00:00
Q&A Assist
2 answers

Suppression carte VISA expirée

Bonjour, J'ai voulu supprimer de mon compte des cartes de crédit qui étaient périmées. Il y avait 2 cartes périmées. La première suppression a bien fonctionnée mais sur la dernière, il m'est indiqué qu'il est possible que la carte est peut-être associé à…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-03-06T08:46:41.74+00:00
SERGE ELLIE 20 Reputation points
edited the question 2026-03-06T09:59:09.8066667+00:00
Bharath Y P 5,620 Reputation points Microsoft External Staff Moderator
1 answer

I can no longer access any of my Office 365 apps, the link stopped working yesterday

Please help! It is urgent. Sign-in failed Error code: AADSTS5000224 Error message: The tenant you are trying to access has been deauthenticated and is no longer available. Try signing in using a new or private browser window. If you are a member of…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-01-27T07:34:35.6+00:00
Shayonam 0 Reputation points
commented 2026-03-06T09:45:38.5533333+00:00
Shayonam 0 Reputation points
1 answer

Cannot download files

Hi, I cannot work out what is going on with the permissions needed to download a file in Purview. But then Microsoft never make anything easy. After finally working out how to prepare files for download - which took hours - I get blocked. Well guess…

Microsoft Security | Microsoft Purview
asked 2026-03-06T09:43:59.1433333+00:00
James Carter 0 Reputation points
answered 2026-03-06T09:44:17.2066667+00:00
Q&A Assist
1 answer

MS MFA Authenticator issues China

Hello everyone, I'm hoping someone can help with the following issue as I'm running out of ideas. For our APAC Region - specifically China - the MFA authenticator is being enforced. The problem we're having is that the QR codes that the employees need…

Microsoft Security | Microsoft Authenticator
asked 2024-10-25T08:23:23.43+00:00
Yves 10 Reputation points
commented 2026-03-06T09:32:45.6833333+00:00
yang ming 0 Reputation points
0 answers

Trying to login on my work phone

When i try to Login on my work phone it sends me to verify my identity but the text / call verifier is the incorrect mobile number. how do i change my number?

Microsoft Security | Microsoft Authenticator
asked 2026-03-06T09:30:47.67+00:00
Kingman, Philip J 0 Reputation points
0 answers

Receiving "Invitations are blocked for this directory due to suspicious activity" when attempting to invite guests"

I encountered an issue when trying to invite guest accounts to my Azure tenant, specifically through the Microsoft 365 Admin Center, I got message "Invitations are blocked for this directory due to suspicious activity" I am not sending…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-03-06T02:23:36.4533333+00:00
Muhammad RIfky Ramadan 0 Reputation points
commented 2026-03-06T09:29:42.78+00:00
Muhammad RIfky Ramadan 0 Reputation points
1 answer

MFA/ Authenticator Lockout Issue

Hello I create one M365 account using my main id and associated authenticator to my phone app. I accidentally clean wipe my phone without backing up the authenticator. Now I can not log in to my M365 account. It was in trial mode, that finished last…

Microsoft Security | Microsoft Authenticator
asked 2026-03-05T02:44:48.46+00:00
Niloy Saha 0 Reputation points
commented 2026-03-06T09:24:17.41+00:00
Gunasekar N 60,515 Reputation points Independent Advisor
1 answer

B2B guest invitations blocked on newly created tenant — Invitations are blocked due to suspicious activity" (Tenant ID: PII)

We created a new Microsoft Entra ID tenant today and successfully invited 5-6 guest users. After those initial invitations, all further guest invitations now fail with "Insufficient privileges to complete the operation" in the portal and a 403…

Microsoft Security | Microsoft Entra | Microsoft Entra External ID
asked 2026-03-04T21:28:08.0633333+00:00
Nathan Bowen 0 Reputation points
answered 2026-03-06T09:21:11.83+00:00
kagiyama yutaka 1,165 Reputation points
0 answers

The silent refresh issue

Client env as ms entra sso, the scope visible in browser

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-02-25T10:32:16.1966667+00:00
Shweta Salaria 0 Reputation points
commented 2026-03-06T09:15:22.97+00:00
Shubham Sharma 10,645 Reputation points Microsoft External Staff Moderator
1 answer

Can No Longer Invite Guests - Insufficient Privileges

I'm in the process of setting up Entra ID to use as an external authentication provider for our CRM system. Just as a bit of background i am a novice to all of this but have read through several guides to assist in setting things up which has been great…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-02-24T15:41:55.3833333+00:00
Matt Leach 0 Reputation points
edited a comment 2026-03-06T09:10:09.65+00:00
Shubham Sharma 10,645 Reputation points Microsoft External Staff Moderator
1 answer

Ms authenticator

I got issues tò login with my business account After registered tò ms authenticator, they Say my account got issues on verification, i try to put the two Number code on the app but nothing happen , and I don t received any notification, what Is wrong?

Microsoft Security | Microsoft Authenticator
asked 2026-03-06T09:06:30.7933333+00:00
Danilo Gasparro 0 Reputation points
answered 2026-03-06T09:06:52.8233333+00:00
Q&A Assist
0 answers

wdavdaemon cpu usage issue and possible tuning point

Environment Summary Platform: Azure VM OS: RHEL 9.4 Protection: Microsoft Defender for Servers (via Defender for Cloud) Process: Microsoft Defender for Endpoint for Linux (mdatp / wdavdaemon) Symptom: Periodic CPU spikes from wdavdaemon during…

Microsoft Security | Microsoft Defender | Microsoft Defender for Cloud
asked 2026-03-04T04:07:22.07+00:00
CHUNSIK KIM 1 Reputation point Microsoft Employee
commented 2026-03-06T09:04:35.1366667+00:00
Shubham Sharma 10,645 Reputation points Microsoft External Staff Moderator
1 answer

Infinite loop with Microsoft Authenticator

Hello, To be able to login to my Office 365 account, I need a code from MS Authenticator. When trying to add same account in the Authenticator it is again saying to enter the Code, like I have it in some other phone. So its an infinite loop "Enter a…

Microsoft Security | Microsoft Authenticator
asked 2026-03-06T08:31:01.96+00:00
Milos Jovanovic 0 Reputation points
answered 2026-03-06T08:58:56.8066667+00:00
Milos Jovanovic 0 Reputation points
0 answers

Locked out due conditional access policy

All Global Administrator accounts are locked out due to Conditional Access. Sign from local MFA policy was enabled before admin accounts were fully compliant. No break-glass account exists. Need Conditional Access policy temporarily disabled to restore…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-03-06T08:55:23.25+00:00
Darshan M 0 Reputation points
commented 2026-03-06T08:57:55.44+00:00
Darshan M 0 Reputation points
1 answer

I have granted permission in App registration to an App but it is showing SMTP error

We are integrating a PHP web application to send emails via SMTP using the modern OAuth 2.0 (XOAUTH2) flow for the account: PII. The Issue: We have successfully registered the Azure App. We have successfully granted Admin Consent for the delegated…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-02-27T07:19:41.5966667+00:00
Faruq Bello 20 Reputation points
commented 2026-03-06T08:57:52.8866667+00:00
Faruq Bello 20 Reputation points
1 answer

Trojan:Win32/Posilod.CB!cl

I need more information on this virus as it currently stands there does not seem to be any detailed behavioral context for this specific virus.

Microsoft Security | Microsoft Defender | Microsoft Defender for Cloud
asked 2026-03-06T08:55:39.2733333+00:00
Werner Lübbe 0 Reputation points
answered 2026-03-06T08:55:54.34+00:00
Q&A Assist
1 answer

Sign-in failed Error code: interaction_required Error message: interaction_required: AADSTS5000225 for new Azure user

I created new account in Azure and got below error while logging: Sign-in failed Error code: interaction_required Error message: interaction_required: AADSTS5000225: This tenant has been blocked due to inactivity. To learn more about tenant lifecycle…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-03-03T23:15:37.6+00:00
Risa96 0 Reputation points
edited a comment 2026-03-06T08:46:44.41+00:00
Risa96 0 Reputation points
3 answers

How do you get help with a personal Microsoft Account corrupted due to association to deleted tenant

I have contacted every valid support team I can access with my personal Microsoft Account. I am repeated told to contact Azure support. I can't access Azure support because I have a personal Microsoft account. I need escalation to the Microsoft…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-03-01T09:49:35.4033333+00:00
John Grantman 0 Reputation points
answered 2026-03-06T08:41:45.2133333+00:00
Raja Pothuraju 45,775 Reputation points Microsoft External Staff Moderator
2 answers

"interaction_required: AADSTS16000: User account '{EUII Hidden}' from identity provider 'live.com' does not exist in tenant 'Microsoft Servi

Reinserted screenshot after marking PII.

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-03-06T01:29:14.19+00:00
Prosper Mawunya 0 Reputation points
edited the question 2026-03-06T08:12:06.35+00:00
Raja Pothuraju 45,775 Reputation points Microsoft External Staff Moderator