Managing personal Outlook.com account settings, security, and privacy
Hey there! Nice to meet you!
There is a possibility that a hacker repeatedly tried to sign in to your account, which triggered the system to detect multiple failed sign-in attempts or an unusual login pattern, resulting in the account being blocked and forcing you to reset the password to unblock it.
To avoid this, kindly secure your account by enabling the two-step verification feature and ensure that your verification methods are updated on account.microsoft.com > Security > Manage how I sign in
Then please follow the guide from this thread to prevent unauthorized logins: https://learn.microsoft.com/answers/questions/4049625/someone-is-repeatedly-trying-to-access-or-hack-my?forum=windows-all&referrer=answers
“Please note that this is a public forum, I will be responding you in short period of time and regret for a delay in response. As I am merely a fellow user trying to provide insight and information that may be helpful to others.”
Thank you for your understanding! Please feel free to let me know if you need anything else.
Best regards,
Darhyl