Hi Barbara,
Thank you for using our Microsoft Advertising Community Forum!
I understand that you never created a Microsoft Advertising Account, but someone has apparently used your email credentials for setting up an account.
We take your security and safety very seriously and have dedicated teams working to mitigate and help prevent any fraudulent activity. However, it is critical for you to also protect your personal information, password, and internet-connected devices from unwelcome activity. In the event an issue arises, taking swift action can help minimize the damage from any compromise that may arise. These features make it more difficult for someone else to sign in, even if they have learned your password.
- Turn on two-step verification: Two-step verification helps protect your account by making it more difficult for a hacker to sign in, even if they have your password. Any time you sign in from a device that isn't trusted, you'll be prompted to enter a security code. Learn more about turning on two-step verification.
- Use the Microsoft Authenticator app: This is the most effective way to protect your account. The Microsoft Authenticator app provides an easy way to use the multiple forms of identification that you have provided, to get you signed in fast using two-step verification. Some examples of different forms of identification include: Your password, your fingerprint, face recognition, or a PIN. Download the Microsoft Authenticator app.
- Identify yourself with a security code: When you access sensitive Microsoft Advertising information or make changes (your password, for example), you’ll be asked to enter a security code that has been sent to your phone or an email address. After you enter the code, you can access and manage your information.
Based on what you've explained, and since you never signed up for a Microsoft Advertising Account, I highly recommend you contact the relevant support team for your email address. Changing your password and using multi-factor authentication is also very important.
Our support teams are happy to discuss your account in more detail via phone, chat or email to provide review assistance, please see our support page to reach out!
I hope the information provided here was of some help to you. I have also sent you a private message asking for additional details for continuing the investigation on my end. Feel free to share relevant information that you are concerned about.
Kind regards,
Vahid | Microsoft Advertising Support Specialist | 800-518-5689