手機authenticator

Question

你好, 我是Microsoft 365 商務版帳戶, 而且是唯一管理員,

遺失了手機無法在新手機上驗證authenticator,

在新手機輸入帳號及密碼後需要authenticator驗證碼登入， 選擇”文字”或”致電”都顯示”驗證你的賬戶時發生問題,請再試一次”
Error code : 399287

因我是管理員亦未能登入azure portal, 請問我該怎麼辦?

Answer 1

Hello Maggie Wong,

Thank you for sharing your details via private message.

I’ve reached out to the engineering team regarding the MFA issue on your account. They have now unblocked it from the backend and cleared the bad reputation associated with it. You should be able to log in to the Azure Portal without any issues.

Please try signing in and verify if you can complete SMS authentication successfully. Let me know if you encounter any problems.

As a best practice, I recommend registering the Microsoft Authenticator method for your account instead of relying on SMS. SMS and voice call authentication methods are more vulnerable to IRSF attacks (telephony fraud) and are generally less secure.

For better practice, I recommend registering with Microsoft Authenticator method to your account instead of SMS method as these SMS/Voice telecom auth methods are susceptible to IRSF attacks telephony fraud.

I hope this information is helpful. Please feel free to reach out if you have any further questions.

Answer 2

您好，感谢您的联系。

感谢您分享详细信息。您是否尝试过使用其他浏览器或私人窗口来确认出现相同的错误？

如果每种方法都失败，并且你是唯一的管理员，请使用 https://aka.ms/sspr 中的自助密码重置页

如果您的安全信息在那里不可用，下一步是通过 https://support.microsoft.com/contactus Microsoft管理员帐户恢复请求

这是为了验证您的身份并在身份验证器手机丢失且备份方法不起作用时恢复访问权限。支持团队将帮助你重新获得对 Microsoft 365 商业版管理员帐户的登录访问权限。