If Microsoft shows Your account is temporarily locked to prevent unauthorized use, the sign-in system has paused access ...
To enable the passwordless feature for your Microsoft account, you first have to add the Microsoft Authenticator app. After that, you will be able to enable the passwordless mode for your account.
Some users received an email in their Outlook inbox saying, Your account has been flagged for unusual activity. This message indicates that Microsoft has detected unusual activity on your account.
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