Why strange incident is often occured on MS ontlook app of my cellphone?

naoki 21 Reputation points
2022-07-17T13:11:19.363+00:00

How can I find out the phenomenon on the iphone?

Is the signs of takeover,etc?

Contact information in MS outlook app was updated without my permission.

I asked about the above issue to MS support desk,but no one has explained it to me.

I requested disclosure of the app's operation logs, but he or she rejected it.

I don't know what I can do to solve it.

please help me

Outlook Management
Outlook Management
Outlook: A family of Microsoft email and calendar products.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Dillon Silzer 52,736 Reputation points
    2022-07-17T16:23:01.13+00:00

    Use the following steps to view information related to sign-ins and secure your account.

    1) Check your sign in activity on your account:

    See when and where you've used your account (you should be able to locate if there has been someone else signing into your account here).

    https://account.live.com/Activity?mkt=en-US&refd=account.microsoft.com&refp=security

    221582-image.png

    2) Sign yourself out of all trusted devices:

    https://account.live.com/proofs/

    221567-image.png

    3) Turning two-step verification on or off for your Microsoft account

    https://support.microsoft.com/en-us/account-billing/turning-two-step-verification-on-or-off-for-your-microsoft-account-b1a56fc2-caf3-a5a1-f7e3-4309e99987ca

    https://account.microsoft.com/security?lang=en-US

    221530-image.png

    Add a new way such as Text a code or other options to stop the use of single factor authentication (password only).

    221622-image.png


    If this is helpful please mark as correct answer.

    1 person found this answer helpful.
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  2. naoki 21 Reputation points
    2022-07-17T23:50:14.043+00:00

    @Dillon Silzer

    Thank you good information.

    But I have already done it.

    the below what I have done.

    1. I checked sign in activity. But I couldn't find strange tracks.
    2. I have already set two-step verification.
    3. I use MS Authenticate app.

    concering about the above No 1,
    IP address is displayed in sign-in activity.but the IP-address is tempopary address( maybe called-leased),so I can't use it to solve this strange issue, MS support advised.

    I haven't got alart messages from MS about unauthorized sign-in yet.

    All I have to do is requesting disclosure of App's log.

    but I don't know whom , how to request above it.

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