Hello @Suchithra Loka,
Based on your issue description, I understand that you are unable to access Azure portal because of security info update.
We were waiting for you to provide the requested details mentioned in the above comment to create a support ticket on behalf of you to further assist you in resolving this issue.
But I am glad to know that you have contacted Microsoft Support team and the issue has been resolved.
Please don't forget to click "Accept Answer" and kindly upvote it as it will be helpful to other community members facing similar issues can find this thread as a reference. If you have extra questions about this answer, please click "Comment".