That sounds strange @CarmenF1
Unfortunately it is fraud season, so this might happen from time to time. So long as you have that 2-factor authentication setup, you should be fully protected from things like this.
Even without 2-factor enabled, you're also protected by the password security as well as the device notification email that lets you know when someone signs in on a new device.
It's better to be on the safe side of things, so I recommend changing your password to your Square account and also the email account that you signed up with.
If you see anything strange on your account at all, give us a call immediately and we can investigate.
