Why did qb create a different user for me?

Welcome to the Community, @betataxalain-gma.

I can share a few insights about how QuickBooks saves user access rights.

QuickBooks doesn't automatically create a different user in your QuickBooks Online account. If you're the primary admin and don't remember adding someone to manage your QuickBooks company, someone may have accessed your QBO account.

In your case, I suggest checking your Audit log to see who made it and when it was added. Then remove the user's access rights from your account.

Here's how to remove the user:

1. Go to Settings ⚙.
2. Select Manage users.
3. Find the user you want to delete. Then click the arrow icon ▼ from the Action column.
4. Hit Delete.
5. In the confirmation window, choose Delete.

Then you can secure your account by changing and creating a stronger password or enabling two-step verification.

In addition, here are some articles as your guide to become more familiar with the access rights:

• What different types of users can I add to my company?
• How to Add & Manage Users For Your Company.

If you need additional help in securing your QuickBooks account, please don't think twice to post your questions here. I'm always here to help. Take care always.