<prompt> Human: So currently I am filing my 2017 tax return on TurboTax and for some of the items I need to refer to last years tax return. TurboTax is seamlessly getting all the accurate numbers from my 2016 tax return.However, I didnt use TurboTax in 2016. I used Credit Karma to file my tax that year.How does TurboTax has all my tax return information?Assistant: I believe they establish a secure tunnel with the Tax dept based on your SS number, and gain information they need from them.Human: Without my permission?I dont remember giving TurboTax any permission to access my last years tax return.  <response>: I think its part of the EULA, when you use this site... blah blah blah 