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Lock or block login attempts

Lesmy R. Vazquez 0 Reputation points
2026-01-14T19:26:44.4+00:00

how to block or lock my account in outlook email so no more attempts are possible

Outlook | Windows | New Outlook for Windows | For home
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  1. EmilyS726 213K Reputation points Independent Advisor
    2026-01-14T21:10:23.13+00:00

    Hello,

    Please make sure you change password, and set up 2FA verification.

    In addition, do this:

    Go to your Microsoft account online https://account.live.com> Sign in > Your info > Sign in preference. Add an alias - You have two options here:

    Create new: this will allow you to use the native domain outlook.com to create a new alias.

    Add existing: this will allow you to add a 3rd party email address, such as yahoo, gmail, as long as they are not already associated with another Microsoft account.

    Once added, make this new alias your primary alias, do NOT delete the old alias. Then at the bottom, click on "Change sign in preference". On the next page, uncheck the box for the old alias. This means, from now one, the old alias cannot be used to sign into your Microsoft account, but it can be still used to receive emails, etc. And do NOT share your new alias/email address with anyone, don't use it to sign up for services/newsletters, don't post it on any public forum/platforms.

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  1. Hal Hostetler MVP-Outlook 11,896 Reputation points MVP Volunteer Moderator
    2026-02-15T18:59:20.0366667+00:00

    Please have a look at this article, it has step by step instructions:

    https://www.outlook-tips.net/tips/keeping-hackers-microsoft-accounts/

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  2. Q&A Assist
    2026-01-14T19:26:50.1033333+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    To block or lock your Outlook account to prevent any login attempts, you can follow these steps:

    1. Reset Your Password: This is the first step to prevent unauthorized access. By changing your password, you can ensure that anyone who may have your old password cannot log in.
    2. Block Sign-in: If you are an administrator, you can block a user's sign-in access through the Microsoft 365 admin center. Here’s how:
      • Go to Users > Active users.
      • Select the user you want to block, and then select Block sign-in.
      • On the Block sign-in page, select Block this user from signing in, and then save the changes.
    3. Use Exchange Admin Center: If you have email as part of your Microsoft 365 subscription, you can use the Exchange admin center to block access to email. This includes turning off access for various email apps.
    4. Wait for Changes to Take Effect: Note that blocking an account can take up to 24 hours to fully take effect.

    These steps will help you secure your account and prevent any further login attempts.

    References:

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