86,587 questions with Microsoft Security-related tags

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My account was hacked

บัญชีของผมถูก hack แล้วยื่นเรื่องออนไลน์ไปแล้วไม่ผ่าน ผมมีหลักในการเปลี่ยนอีเมล เพราะผด้วยhack gmaiด้วย ผมกู้คืนอีเมลมาได้แล้ว แล้วบัญชีไมโครซอฟท์ โดนเปลี่ยนอีเมลไปแล้ว ช่วยดึงบัญชีกับมาได้ไหมครับ

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2025-07-28T11:11:36.44+00:00
caramel 0 Reputation points
answered 2026-09-05T10:15:53.7233333+00:00
Inwzaza007 Pond 0 Reputation points
1 answer

windows security scan

Hello Windows security when trying to scan quick or full scan it takes very long time and never continue it stuck , as it was not like this but this happened since the two days ago and still . So, please resolve this issue as am sending you the…

Microsoft Security | Microsoft Defender | Microsoft Defender for Office 365
asked 2026-09-04T23:32:40.16+00:00
asmahan gbara 0 Reputation points
answered 2026-09-05T09:49:52.8866667+00:00
Bence Weiszmann 1,395 Reputation points
1 answer

Microsoft account recovery

At Easter my account was hacked I had had that account for 10 years had spent my time and hours on to that account the account name is chopster2011 when it was hacked I was very upset but you know I thought that Microsoft could do something about it but…

Microsoft Security | Microsoft Authenticator
asked 2026-09-05T00:51:07.6833333+00:00
Charlie Pearce 0 Reputation points
edited an answer 2026-09-05T09:41:17.4433333+00:00
Bence Weiszmann 1,395 Reputation points
2 answers

Unable to Recover Microsoft Authenticator Accounts After Changing Phone

I recently changed my phone, and my previous phone had the Microsoft Authenticator app configured with multiple accounts for MFA/two-step verification. Unfortunately, I did not transfer Authenticator accounts before switching to the new phone. The old…

Microsoft Security | Microsoft Authenticator
asked 2026-09-05T06:39:12.9533333+00:00
Satish Cpd 0 Reputation points
answered 2026-09-05T09:32:51.79+00:00
Bence Weiszmann 1,395 Reputation points
1 answer

Global Admin Locked out

Hi, I’m locked out of our company's Microsoft 365 admin account because my phone with the Authenticator app was stolen, and so I no longer have access to it. I’m the only Global Administrator. MFA is required, and my only registered method was Microsoft…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-01-08T19:48:34.8266667+00:00
Nishtha Nagpal 60 Reputation points
commented 2026-09-05T08:40:26.6266667+00:00
JuliaMarvin 22,095 Reputation points Volunteer Moderator
1 answer

Blocked from Submitting Support Ticket: AADSTS16000 & "No Access Permission" Errors when Requesting Azure for Students Manual Verification

Dear Microsoft Azure Support Team, I am a full-time university student in China and I am trying to apply for the Azure for Students subscription ($100 credit, no credit card required). I am currently completely blocked by both the verification process…

Microsoft Security | Microsoft Identity Manager
asked 2026-09-02T07:27:10.9766667+00:00
Rezero 0 Reputation points
edited the question 2026-09-05T07:34:28.2966667+00:00
Ravi Varma Mudduluru 12,625 Reputation points Microsoft External Staff Moderator
2 answers

How can I download all my users with the smtp information

I need to download all my current users in Azure with SMTP information

Microsoft Security | Microsoft Identity Manager
asked 2026-09-02T18:52:40.44+00:00
Kilburn, Stephanie (CO) 0 Reputation points
edited the question 2026-09-05T07:32:33.26+00:00
Ravi Varma Mudduluru 12,625 Reputation points Microsoft External Staff Moderator
2 answers

Unable to sign in to Azure with my personal 365 account with MFA issue unable to be resolved by Business data protection team

I have an azure tenant links to my 365 personal account. From this year, I am unable to sign in to Azure due to MFA issue. Account affected: (personal admin) Issue: The sign-in page asks me to verify using Microsoft Authenticator. The available options…

Microsoft Security | Microsoft Identity Manager
asked 2026-09-03T00:50:00.9833333+00:00
LindaL 0 Reputation points
edited the question 2026-09-05T07:21:34.6333333+00:00
Ravi Varma Mudduluru 12,625 Reputation points Microsoft External Staff Moderator
0 answers

Unable to add domain

Screenshot 2026-09-03 152003 1.png We are trying to add the domain using work or school using Entra ID and encountering below error

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-09-05T05:44:49.07+00:00
Doddabasappa K 25 Reputation points
0 answers

Configuration Manager 2603 Error in SMS_SERVICE_CONNECTOR Worker "OfficeCDNWorker"

SMS_SERVICE_CONNECTOR shows an error regarding OfficeCDNWorker. All this started Sep, 1st 2026. Analyzing the OfficeCDNWorker.log shows: [Critical][OfficeCDNWorker][1][System.Security.Authentication.AuthenticationException][0x80131501] The remote…

Microsoft Security | Intune | Configuration Manager | Updates
asked 2026-09-05T05:21:37.14+00:00
Michael Pfister 6 Reputation points
2 answers

I am unable update my new phone number and not even able get rid of my old number

i have tried many times i am unable to register with my new number but text code is coming to old phone number and not even considering my mail id as default so i need you to update my number to update their is no option in security or anywhere else

Microsoft Security | Microsoft Authenticator
asked 2026-09-03T12:30:54.48+00:00
Priyanka K 0 Reputation points
answered 2026-09-05T03:36:54.8133333+00:00
EmilyS_726 26,535 Reputation points Volunteer Moderator
3 answers

New phone, can't access Authenticator

I bought a new phone and wasn't aware I needed ti backup authenticator. Now apparently authenticator is linked to my old phone to which I have no access. This is a personal account. How can I fix it?

Microsoft Security | Microsoft Authenticator
asked 2026-09-03T16:51:08.1733333+00:00
María Amador Osuna 0 Reputation points
answered 2026-09-05T03:34:08.04+00:00
EmilyS_726 26,535 Reputation points Volunteer Moderator
2 answers

My computer has a microsoft firewall alert and computer is fully locked. Need live Microsoft support

My computer is a Microsoft firewall alert, indicating Microsoft defender found some infected files I need live support, to unlock.

Microsoft Security | Microsoft Defender | Other
asked 2026-09-04T16:20:33.8633333+00:00
Thomas Colbert 0 Reputation points
answered 2026-09-05T03:29:08.8466667+00:00
EmilyS_726 26,535 Reputation points Volunteer Moderator
1 answer

how do I change the recovery email of my account that I don't have the access to anymore?

yeah, unfortunately recently my laptop broke down and that was my only way to access my recovery email. how do I change it without logging into my recovery email?

Microsoft Security | Microsoft Authenticator
asked 2026-09-05T01:32:55.8766667+00:00
Mark Korolev 0 Reputation points
answered 2026-09-05T03:25:02.21+00:00
EmilyS_726 26,535 Reputation points Volunteer Moderator
1 answer

When will Microsoft Authenticator be fixed?

@microsoftsupport It doesn't work. It never sends new notifications. The codes always fail. I'm so tired of having difficulty accessing what I should be able to easily access. Help please!

Microsoft Security | Microsoft Authenticator
asked 2026-09-05T00:56:40.63+00:00
Jennifer Ann Smith 0 Reputation points
answered 2026-09-05T00:56:54.4666667+00:00

AI answer

1 answer

Azure has blocked myphone number for SMS verification due to a “bad reputation” flag

I try to login via SMS because my phone was reset and now I am getting: Error 399287 means Azure has blocked your phone number for SMS verification due to a “bad reputation” flag. How to let the flag be removed?

Microsoft Security | Microsoft Authenticator
asked 2025-10-09T10:28:05.4+00:00
Bob Louwe 5 Reputation points
commented 2026-09-05T00:53:46.1866667+00:00
Jutha Sukto 0 Reputation points
1 answer

Unable to Create Azure Support Request for Ransomware Incident - Need Microsoft Security Assistance

Hello Team, We are experiencing a ransomware/security incident in our environment. Our requirement is to engage Microsoft Security/Azure support to perform: Deep Microsoft Defender investigation. Security assessment of affected endpoints and servers. …

Microsoft Security | Microsoft Defender | Microsoft Defender for Cloud
asked 2026-08-31T09:28:01.0333333+00:00
Ranjitha NJ 0 Reputation points
answered 2026-09-04T23:30:08.87+00:00
Chris Hailes 155 Reputation points MVP
0 answers

Microsoft Authenticator MFA Recovery – Lost Access to Authenticator

Unfortunately, my mobile phone is damaged, and I no longer have access to the Microsoft Authenticator app. I also do not have the recovery key or any alternative MFA method available. I need assistance recovering access to my account and…

Microsoft Security | Microsoft Authenticator
asked 2026-09-04T23:20:36.61+00:00
mostafa hussien 0 Reputation points
1 answer

Linked authenticator app not connected

Rockstar Games relies on a linked account with my microsoft authenticator app, but my microsoft account authenticator is not sending me a code, and the one-time password code does not work to get access to my account information with them. Emailing their…

Microsoft Security | Microsoft Authenticator
asked 2026-09-04T22:52:40.25+00:00
Dragonbane 0 Reputation points
answered 2026-09-04T22:52:58.6966667+00:00

AI answer

0 answers

How to regain acces to old otp

I'm using microsoft's authenticator app for my Instagram profiel, I changed my phone to a new one, and now I lost access to my ig profile because it keeps asking for my authenticator app's code, but that code doesn't show on the app on the new phone. I…

Microsoft Security | Microsoft Authenticator
asked 2026-09-04T22:30:44.5733333+00:00
Valentina de la Torre 0 Reputation points