86,514 questions with Microsoft Security-related tags

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How do I fix Microsoft Authenticator login loop of death?

Can't sign-in to authenticator app because it requires approving a code in the authenticator app I can't sign in to. I am the IT admin, there is NO WAY to sign-in and no way to contact support.

Microsoft Security | Microsoft Authenticator
asked 2026-09-02T11:50:44.26+00:00
Jon Bowerman 0 Reputation points
commented 2026-09-02T14:53:24.4933333+00:00
Jon Bowerman 0 Reputation points
0 answers

URGENT – Complete Microsoft Entra Tenant Lockout – Existing Data Protection Case 2609020040000114 Not Progressing

We have a complete production Microsoft 365 / Entra tenant lockout caused by Conditional Access. Existing Microsoft Data Protection case: 2609020040000114 Locked tenant: UnlimitComp Tenant ID: ecff4485-c497-462a-85ab-e9b257305a1c Error: AADSTS53003 All…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-09-02T14:27:37.9066667+00:00
Brian Jefferys 0 Reputation points
0 answers

I am a Global Administrator, but get a "You do not have access" message when I try to open the health tab in Azure or Entra

I am a global administrator of a small business MS365 tenant, and I get daily health alerts from Entra via email. When I log into the Azure portal, I cannot view either the Entra Health tab or the Azure Health tab - I get the "You do not have…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-06-11T06:52:24.1866667+00:00
James Baldwin 0 Reputation points
commented 2026-09-02T14:23:43.4233333+00:00
James Baldwin 0 Reputation points
3 answers

What is the best practice for Guest Users MFA Reset, do they have option to reset their MFA?

I am looking for best practice for multi factor authentication reset for guest users. Is there a way we can enable them to do it their selves?

Microsoft Security | Microsoft Authenticator
asked 2026-09-02T10:32:21.21+00:00
Joshi, Yash 0 Reputation points
answered 2026-09-02T14:11:57.5933333+00:00
Bence Weiszmann 1,310 Reputation points
1 answer

How to fix issue with "Device health attestation isn't supported on this device."

I have tpm 2.0 enabled in bios but when i go to my security processor troubleshooting it says "Device health attestation isn't supported on this device. Clearing your TPM might help enable it." Unfortunately clearing my TPM has not done…

Microsoft Security | Microsoft Defender | Other
asked 2026-09-02T13:46:06.66+00:00
Connor McGuire 0 Reputation points
commented 2026-09-02T13:52:51.58+00:00
Connor McGuire 0 Reputation points
2 answers

Defender not install

Security Intelligence Update for Microsoft Defender Antivirus - KB2267602 (Version 1.443.1003.0) - Current Channel (Broad) - Error encountered and how to fix

Microsoft Security | Microsoft Defender | Other
asked 2026-02-04T23:39:57.45+00:00
Arnal, Maria Elisa 0 Reputation points
edited a comment 2026-09-02T13:33:14.36+00:00
RuthDixon-5894 0 Reputation points
0 answers

"Successful Sign-in" followed by "Unusual Activity Detected" log

Hi Microsoft Experts,I recently checked my Microsoft account's Recent Activity and noticed something confusing. At the bottom of the log, there was a "Successful sign-in" from an unfamiliar IP address. Immediately above that entry, at the exact…

Microsoft Security | Microsoft Authenticator
asked 2026-09-02T11:43:26.5066667+00:00
vu hai dao 20 Reputation points
edited the question 2026-09-02T11:51:22.5533333+00:00
vu hai dao 20 Reputation points
2 answers

Can EntraID Connect Sync be connected to an onsite ADFS without a web proxy

I have ADFS set up on an onsite Server 2022 DC and I'm wishing to connect it to EntraID Connect without deploying a Web Proxy Server, Is this achievable?

Microsoft Security | Active Directory Federation Services
asked 2026-09-02T03:53:02.85+00:00
Bill Hind 0 Reputation points
answered 2026-09-02T11:16:27.1733333+00:00
Marcin Policht 105.4K Reputation points MVP Volunteer Moderator
1 answer

Guidance Needed: Purview Scanning and Auto-Labeling for Dataverse with Power BI Reporting

We have Microsoft Purview in place and have connected it to our Dataverse UAT environment. However, there is currently a limitation with the UAT environment: Dataverse UAT does not contain a proper/complete clone of the Production data. The UAT…

Microsoft Security | Microsoft Purview
asked 2026-09-01T05:54:52.29+00:00
Srikanth Yellapragada 0 Reputation points
edited a comment 2026-09-02T10:58:19.2766667+00:00
Himaja Y 275 Reputation points Microsoft External Staff Moderator
1 answer

I got an error when create federated-credential for my APP

I use this commands: az ad app federated-credential create --id "$appId" --parameters ./params.json to create federated-credential for my app "d50e4b91-47a4-4ab4-8ffa-1da6340d5da2" "Test-ALTS-Agent" But I got the following…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-06-11T03:34:01.0533333+00:00
Baihua Lu 10 Reputation points Microsoft Employee
commented 2026-09-02T09:55:36.1533333+00:00
Jie Li 71 Reputation points Microsoft Employee
1 answer

Which URLs must be allowed on a firewall to use the new Microsoft Purview portal fully privately (private endpoints only)?

I'm trying to run Microsoft Purview so that it is only reachable from our internal network, with no public exposure. Purview account with Public network access set to "Disabled from all networks" All Purview traffic over private endpoints…

Microsoft Security | Microsoft Purview
asked 2026-09-01T04:10:29.2266667+00:00
Yu-Jeong Seo 335 Reputation points
commented 2026-09-02T09:48:13.12+00:00
Charan Venkat Sai Thambi 0 Reputation points Microsoft External Staff
0 answers

How to fix this issue: Blocked due to organizational overrides. Update or remove the "FileTypePolicy" action from the Anti-malware policy (Strict Preset Security Policy1656932236829)

We are sending an internal email, but the email is bouncing back with the following error: “Blocked by organization policy: Antimalware policy block by file type.” However, the file type is not included in the blocked file types list, as we verified in…

Microsoft Security | Microsoft Defender | Microsoft Defender for Office 365
asked 2026-09-02T06:22:24.2333333+00:00
Shahnawaz Alam 0 Reputation points
1 answer

Didn't receive a sign-in request

I am trying to sign in to my account, but I am not receiving the approval request on my Microsoft Authenticator app. The sign-in request appears on my laptop and asks me to enter the number shown, but no notification or approval request appears on my…

Microsoft Security | Microsoft Authenticator
asked 2026-09-02T08:15:47.0366667+00:00
GINA AYU WANDIRA 0 Reputation points
answered 2026-09-02T08:16:08.7833333+00:00

AI answer

1 answer

Microsoft Sentinel Stuck in a Loop in the Defender Portal

In the microsoft defender portal with sentinel, i have connected, disconnected and waited 30 minutes, and reconnected the SIEM workspace. if i go to sentinel and any of the tabs in defender, it just loops to the connectors page as if the workspace is not…

Microsoft Security | Microsoft Sentinel
asked 2026-05-12T03:48:26.8633333+00:00
Malaurm 0 Reputation points
commented 2026-09-02T07:45:09.65+00:00
Manivel K 15 Reputation points
1 answer

Authentication dataverse without library

Hi! I need to connect to the Microsoft Dataverse API with OAuth 2.0 authentication with certificate. (S2S) Not using a MSAL library. Where can I find the code to collect the token?

Microsoft Security | Microsoft Entra | Other
asked 2026-09-02T06:56:36.5+00:00
Laura de Koning 0 Reputation points
edited the question 2026-09-02T07:00:52.8666667+00:00
Laura de Koning 0 Reputation points
0 answers

how to fix windows security not working issue

my windows security is not working how can fix it.

Microsoft Security | Microsoft Defender | Other
asked 2026-09-02T05:22:34.66+00:00
Buddhika Aththanayake 0 Reputation points
0 answers

Sole Global Administrator locked out by MFA: Microsoft and GoDaddy referring me to each other

I am the sole Global Administrator of my Microsoft 365 tenant. I know the password, but the only MFA methods available are Microsoft Authenticator approval or an Authenticator verification code. The old Authenticator registration is no longer accessible,…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-09-02T04:01:24.22+00:00
Kody Kildea 0 Reputation points
commented 2026-09-02T05:13:15.1133333+00:00
Kody Kildea 0 Reputation points
1 answer

Vulnerability in OpenSSL (CVE-2026-28387) Path(s) : C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_19.2608.49021.0_x64__8wekyb3d8bbwe\libssl-3-x64.dll

Vulnerability in OpenSSL (CVE-2026-28387) Vulnerability in OpenSSL (CVE-2026-28387) Path(s) : C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_19.2608.49021.0_x64__8wekyb3d8bbwe\libssl-3-x64.dll

Microsoft Security | Microsoft Defender | Other
asked 2026-08-28T03:50:42.38+00:00
Sachin Nimsarkar 0 Reputation points
answered 2026-09-02T04:46:30.6333333+00:00
Tachion 0 Reputation points
1 answer

Upgraded the operating system on our configuration manager server from 2019 to 2022 and the remote management points are now showing critical with 0mb.

Upgraded the operating system on our configuration manager server from 2019 to 2022 and the remote management points are now showing critical with 0mb. Tried removing and reinstalling management points, CM install reset and logs appear to be ok, however…

Microsoft Security | Intune | Configuration Manager | Other
asked 2026-08-28T10:13:58.5066667+00:00
Mark Cooper 5 Reputation points
answered 2026-09-02T04:42:10.7566667+00:00
Tachion 0 Reputation points
2 answers

Graph API assignLicense returns 409 Directory_ConcurrencyViolation with DirectoryValueExistsException for all users in tenant

## Problem Calling POST /v1.0/users/{UPN}/assignLicense via Azure Logic Apps (Managed Identity) always returns 409 Directory_ConcurrencyViolation for every user in our tenant. This occurs for both license assignment and removal operations. Manual license…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-06-04T07:14:28.49+00:00
江口 太一 0 Reputation points
commented 2026-09-02T04:39:37.2066667+00:00
江口 太一 0 Reputation points