80,122 questions with Microsoft Security-related tags

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Authenticator issue due to change location and phone

Hi, I am the global admin of my Microsoft 365 tenant. I changed phones and no longer have access to my Microsoft authenticator device. I cannot receive SMS verification. I need my MFA reset for the other two accounts associated with the same domain so I…

Microsoft Security | Microsoft Authenticator
asked 2026-02-26T04:31:35.6233333+00:00
Accounts Team 0 Reputation points
0 answers

Purview Exchange Mailbox (at-rest) Data Discovery and Classification

Hello, I understand that currently Purview Information Protection (auto-labeling policies with SIT's as criteria) and Purview eDiscovery and Content Search may have limitations to scanning and classifying content in Exchange online emailboxes at-rest. …

Microsoft Security | Microsoft Purview
asked 2026-02-26T04:15:42.93+00:00
AzGeek 0 Reputation points
edited the question 2026-02-26T04:24:59.4666667+00:00
AzGeek 0 Reputation points
0 answers

The Downloading Of Dangerous Downloads Ratios In 2026 ?

In 2026,i like to assume the M.D.A. had the same level of protection as it's rivals in 2026,as many experts who also claim that to be from their own websites,but sadly it isn't the case.I can say that the ratio/s of the amount of downloading dangerous…

Microsoft Security | Microsoft Defender | Microsoft Defender for Cloud
asked 2026-02-16T22:47:41.59+00:00
maroner pierre 540 Reputation points
commented 2026-02-26T04:24:09.4333333+00:00
Anthony Lee 1,135 Reputation points
1 answer

Phone number issue - Austria

Right now our customer cannot register to our system. Every time he used his phone number to register, it always threw error "bad phone number". Can someone help me with this issue?

Microsoft Security | Microsoft Authenticator
asked 2026-02-24T03:19:00.8633333+00:00
Tuan Manh Duong 60 Reputation points
commented 2026-02-26T04:18:57.3133333+00:00
Tuan Manh Duong 60 Reputation points
1 answer

About An Installed Trojan Virus?

In 2026,my solely installed M.D.A. was unable to deal with an installed trojan virus.My installed M.D.A. has even been weirdly enough not have any issues with all the other kinds of computer viruses,and in my case, once the computer is damaged by just…

Microsoft Security | Microsoft Defender | Microsoft Defender for Cloud
asked 2026-02-26T03:24:12.9233333+00:00
maroner pierre 540 Reputation points
answered 2026-02-26T04:15:00.5533333+00:00
Anthony Lee 1,135 Reputation points
0 answers

Hacked - bot installed Remote access Trogan

Outlook account only accessed though my Samsung phone. No computer. No iPad. Used a bot to guess my password. Has deleted allll my emails. I have changed my password , enabled 2 factor and recovered my account - HOWEVER - the R.A.T. is still active.…

Microsoft Security | Microsoft Authenticator
asked 2026-02-26T03:32:11.1966667+00:00
Cody Jordison 0 Reputation points
1 answer

Troubleshoot Wi-fi access points /wireless router - 18 wireless networks found. How do I get Wi-fi for my HP printer and get rid of multiple access points?

Troubleshoot Wi-fi access points /wireless router - 18 wireless networks found. How do I get Wi-fi for my HP printer and get rid of multiple access points?

Microsoft Security | Microsoft Defender | Microsoft Defender for Office 365
asked 2026-02-26T03:31:19.36+00:00
Mickie Gray 0 Reputation points
answered 2026-02-26T03:31:31.4933333+00:00
Q&A Assist
1 answer

I lost my authenticator to my tiktok account because I reset my phone is there a way to get it back?

I contacted TikTok support they said they cannot help my TikTok account was linked to my authenticator app I was wondering if there’s a way to either unlink it without logging in or a way to get my old authenticator back?

Microsoft Security | Microsoft Authenticator
asked 2026-02-26T03:20:23.3733333+00:00
J W 0 Reputation points
answered 2026-02-26T03:20:35.1366667+00:00
Q&A Assist
0 answers

My microsoft account has been hacked

hi i tride to log on to my account but could not and found my recvery email had been changed. as i see all my bing points being used on robucs i tride to recove the account but it says if 2FA is active thay cant do anything and to try recovey emal. but…

Microsoft Security | Microsoft Purview
asked 2026-02-26T03:08:33.6166667+00:00
ian buncher 0 Reputation points
7 answers

Microsoft Authenticator – Sign-in requests not visible in Recent activity

Hello, I have been experiencing a strange issue for the past 24 hours with the Microsoft Authenticator app on my iOS phone. At intervals of a few hours, I received sign-in requests from Microsoft Authenticator on my phone. Since I noticed the…

Microsoft Security | Microsoft Authenticator
asked 2026-01-19T19:56:03.6766667+00:00
Oğuzhan YAVUZ 40 Reputation points
commented 2026-02-26T02:52:47.64+00:00
Ash Shaw 0 Reputation points
0 answers

How to reset MFA Authenticator App (Admin) ( I Change mobile phone not backup )

How to reset MFA Authenticator App (Admin) ( I Change mobile phone not backup ) Can't Verify Mobile Phhone

Microsoft Security | Microsoft Authenticator
asked 2026-02-26T02:47:30.66+00:00
Sriborisuth Forging 0 Reputation points
0 answers

How do i get my microsoft account back after it was hacked and deleted

My account hot hacked and deleted and i'm trying to get it back before its too late.

Microsoft Security | Microsoft Identity Manager
asked 2026-02-26T02:39:11.58+00:00
John Crawford 0 Reputation points
1 answer One of the answers was accepted by the question author.

Sign-in failed Error code: AADSTS5000224 Error message: AADSTS5000224: 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.

I encountered this issue when logging into my personal Azure account. Error code: AADSTS5000224 Error message: AADSTS5000224: The tenant you are trying to access has been deauthenticated and is no longer available. Try signing in using a new or private…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-02-24T07:58:00.47+00:00
Ziqiang Zhang 20 Reputation points Microsoft Employee
accepted 2026-02-26T01:58:32.3733333+00:00
Ziqiang Zhang 20 Reputation points Microsoft Employee
2 answers

I am not receiving a verification code on the authenticator app

I keep getting this message "Enter the code displayed in the authenticator app on your mobile device​​" but no code is coming to my mobile device. Moved from Microsoft 365 and Office | Subscription, account, billing | For home | MacOS

Microsoft Security | Microsoft Authenticator
asked 2026-02-24T13:22:22.6033333+00:00
TLeo 0 Reputation points
commented 2026-02-26T01:43:50.2733333+00:00
TLeo 0 Reputation points
0 answers

Need to reset MFA when accessing Azure Portal with Outlook email

Hello everyone, I need to reset/turn off MFA on Azure since I'm not able to access Azure Portal. I can normally configure MFA when accessing Outlook and Office apps, but when I try to access Azure Portal sometimes I receive the error "AADSTS5000225…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-02-24T22:51:41.1866667+00:00
Rogerio Rodrigues 0 Reputation points
commented 2026-02-26T01:32:46.81+00:00
VEMULA SRISAI 8,710 Reputation points Microsoft External Staff Moderator
1 answer

How to use Microsoft Graph API to update the visibiliy of custom user attribute in a user flow?

I have created a custom user attribute that represents the quantity of virtual currency that the user has. This attribute is not supposed to appear during sign-up, but I'd like to manipulate it programmatically and include it in the ID token. I read…

Microsoft Security | Microsoft Entra | Microsoft Entra External ID
asked 2026-02-26T00:06:18.7866667+00:00
Lucas Pires Savassa 0 Reputation points
commented 2026-02-26T01:14:54+00:00
VEMULA SRISAI 8,710 Reputation points Microsoft External Staff Moderator
1 answer

Attack Simulation Training

When we launch simulated phishing campaigns, we configure these so that the users who click the e-mail are assigned follow-up training. However, the e-mail about the training comes from the following sender: ******@attacksimulationtraining.comAs users…

Microsoft Security | Microsoft Defender | Other
asked 2026-02-23T18:32:56.1766667+00:00
Fatima Choudhry 0 Reputation points
answered 2026-02-26T00:51:00.4533333+00:00
Jerome Suggs 0 Reputation points
0 answers

How to gain access back to my minecraft account

Changed the security info towards a different email and now when i sign in to minecraft through a client it says i havent purchased the game. This has only occurred now that the 30 day period waiting period of the change has ended. I had a different…

Microsoft Security | Microsoft Authenticator
asked 2026-02-26T00:49:16.0133333+00:00
Sergio Ayala 0 Reputation points
0 answers

Locked out of Global Admin account due to MFA reset and lost Authenticator app

I have a problem accesing to my Company account because I don't have Microsoft Authenticator anymore (last smartphone was destroyed) and I need to acces to asign new Microsoft Server and SQL Server licensing to this account. Could you help me getting…

Microsoft Security | Microsoft Authenticator
asked 2026-02-26T00:48:02.5066667+00:00
Mario H. Cuellar Perez 0 Reputation points
2 answers

B2B guest invitations are blocked at tenant level. Both Bulk invite (CSV) and single manual invites fail with: "Invitations are blocked for this directory due to suspicious activity. Please contact Microsoft support for help."

Issue: B2B guest invitations are blocked at tenant level. Both Bulk invite (CSV) and single manual invites fail with: "Invitations are blocked for this directory due to suspicious activity. Please contact Microsoft support for help." Scope: …

Microsoft Security | Microsoft Entra | Microsoft Entra External ID
asked 2026-02-24T07:16:09.7033333+00:00
松尾 直樹 0 Reputation points
answered 2026-02-26T00:43:03.76+00:00
松尾 直樹 0 Reputation points