Sending, receiving, and organizing email in Outlook.com
Dear Harshal Parikh
Thank you for posting to Microsoft Community
Based on your description, I understand that you seem to be being blocked from your account by too frequent login requests, please point out if I am misunderstanding.
This may be due to a network issue at the time the login request is sent, I suggest you try to try logging into your Microsoft account again by switching to a different device and network environment first.
You can try to change the login device (PC/Mobile/Tablet), sometimes some software in the device may be incorrectly identified as a threatening item. After eliminating the problem of the device, you can try to switch the network environment, try to switch the mobile phone hotspot/home WIFI network environment
You can also try switching on or off three-way proxy software (VPN) or switching nodes to force you to use a server in another region to log into your account.
If you are still stuck at the screen with too many login requests, you can also try changing your account password and logging in with the new one. When resetting your password, please make sure that the email address you send it to is a known email address that you have access to, as in your case, it is not impossible to rule out the possibility of a hacker script trying your account password over and over again.
This reply may not directly address your issue, so feel free to let me know how it goes any time by repling below.
I look forward to hearing from you!
Carmid.L-MSFT | Microsoft Community Support Specialist