Suspicious Login Issues

How to Protect Your Microsoft Account from Failed Sign-in Attempts

Maira Mehtab Sep 22, 2026 869 views

Question details

The user is experiencing repeated unsuccessful sign-in attempts on their Microsoft account from various locations and needs to secure it against automated password attacks.

Product: Microsoft Account
Device & OS: not provided
Scenario: Securing a user account after noticing multiple unauthorized login attempts from unknown locations.
Observed behavior: Unsuccessful sign-in attempts from different countries using incorrect passwords, indicating a potential automated credential stuffing attack.

Before you start

Ensure you have access to your current secondary email or phone number associated with your Microsoft account, as you will need to verify your identity before making significant security changes.

Solution 1Recommended

Review Sign-in Activity and Update Your Password

Check for suspicious logins and immediately update your password to a strong, unique one to stop unauthorized access attempts.

Automated bots often use exposed usernames and passwords from other data breaches to try and access your account. A unique password ensures these attacks fail.

Review recent activity

Log in to your Microsoft account and navigate to the Security page. Click on 'Sign-in activity' to review recent login attempts and identify any unrecognized locations or devices.

Change your password

Return to the Security dashboard and select 'Change my password'. Create a strong, unique password that you haven't used on any other websites or services.

Password Strength: Use a combination of uppercase and lowercase letters, numbers, and symbols to maximize your password strength against brute-force attacks.

Solution 2

Enable Two-Step Verification

Add an extra layer of security so attackers cannot log in even if they manage to obtain your password.

Solution 3

Implement Passwordless Sign-In

Remove the password entirely from your account to render automated password attacks completely ineffective.

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Frequently Asked Questions

Why am I getting repeated failed sign-in attempts on my Microsoft account?

Automated bots often use exposed usernames and passwords from other data breaches to try and access your account, a technique known as credential stuffing. Even if they fail because they have the wrong password, Microsoft logs these attempts.

What is a passwordless Microsoft account?

A passwordless account relies on alternative methods like the Microsoft Authenticator app, Windows Hello, physical security keys, or SMS codes to verify your identity. This completely removes the traditional password, protecting you from password-guessing attacks.

How do I generate a recovery code for my Microsoft account?

Log into your Microsoft account, navigate to Security > Advanced security options, scroll down to the Recovery code section, and select 'Generate a new code'. Be sure to store this code in a secure, offline location.

Will changing my password stop automated login attempts?

Changing your password secures your account if your previous password was compromised, but bots may still try to log in using the old credentials. The attempts may continue to show up in your activity log, but with a strong password and two-step verification, they will remain unsuccessful.

Microsoft Office Security Issues