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Prevent single-use code phishing emails

Anonymous
2023-06-22T23:08:49.5733333+00:00

Good Afternoon, we have Outlook Exchange host our secure email server by our company's broker/dealer. Weekly my colleague will get emails from account-security-noreply@accountprotection.microsoft.com with subject line "Your single-use code". The body of the email states "We received your request for a single-use code to use with your Microsoft account. Your single-use code is__. If you didn't request this code, you can safely ignore this email. Someone else might have typed your email address by mistake. Thanks, The Microsoft account team." though my colleague never has requested those codes from Microsoft and they come at odd hours of the day. How should we proceed with stopping those email alerts and prevent them? Thank you.

Microsoft Exchange Online Management
Microsoft Exchange Online Management
Microsoft Exchange Online: A Microsoft email and calendaring hosted service.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Kael Yao-MSFT 37,651 Reputation points Microsoft Vendor
    2023-06-23T06:43:13.2333333+00:00

    Hi @Anonymous

    If these emails are actually from accountprotection.microsoft.com, they are legitimate emails sent by Microsoft.

    Please refer to this link: Can I trust email from the Microsoft account team?

    01

    The reason why users are receiving these emails even if they are not requesting codes from Microsoft may either be someone mistakes their account address with yours, or he is trying to hack these accounts.

    Please contact your Azure AD admin to check the Azure sign-in logs if you can find some suspicious sign-in attempts.

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment". 

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  2. jrscpu2004 0 Reputation points
    2024-11-17T18:13:19.5733333+00:00

    I also am receiving multiple emails from the Microsoft Account Team.

    MS keeps issuing a "one-time" login code. The MS listed email address

    is another account I have but isn't the one I use for signing in to my Microsoft

    account. I can only conclude, a hacker is trying to hack into my account.

    The question is,... How do I deal with this situation because I didn't see

    anyway to reply to the Microsoft alert email.

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