Why are there US payroll forms archived in my QBO CA account under the name of an unknown company?

Hi stefnado07,

Thanks for reaching out here.  The information you've provided is definitely concerning and not the expected behavior of QuickBooks Online Canada.  I recommend contacting us outside of Community so we can work with you directly and look into this further from our end.

Schedule a Callback or start a Chat: click (?) Help in the upper right in QuickBooks Online > enter "Contact support" > hit Contact Us > provide a brief summary of your situation > hit Let's Talk > choose Get a callback or Start a Chat.
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Please feel free to reach back out if you have other questions.  We'd be happy to help!