Errors on your credit reports are a serious problem because they hurt your credit badly. It’s important to check your credit report periodically to make sure you made inquiries reporting. It is also extremely important to monitor your credit reports for hard pull inquiries that you did not authorize.
Yes, this can happen; there can be many things reporting inaccurately on your credit report that you are not aware of. In the case of hard pull inquiries, they could be the result of an identity theft.