Password in First/Last/Display name fields

This situation you've described is indeed concerning and should not occur under normal circumstances. AWS strongly advises against putting sensitive information, such as passwords, into free-form text fields like name fields. This is considered a security risk.

If you've found your password in these fields, it's possible that there was an error during account creation or a glitch in the system. Regardless of how it happened, this is not a standard or secure practice.

Here are some steps you should take immediately:

1. Change your AWS account password immediately. Make sure to choose a strong, unique password that you haven't used elsewhere.

2. Update your First Name, Last Name, and Display Name fields with the correct information. Do not include any sensitive data in these fields.

3. Enable Multi-Factor Authentication (MFA) on your account if you haven't already done so.

4. Review your account for any suspicious activity.

5. Contact AWS Support to report this issue. They need to be aware of this to investigate and prevent similar occurrences in the future.

Remember, it's crucial to keep your password and other sensitive information secure. Never enter your password into any field other than the designated password field during login. If you encounter any similar issues in the future, report them to AWS immediately.

This situation underscores the importance of regularly checking your account settings and being vigilant about your online security.
Sources
Data protection in AWS Account Management - AWS Account Management