Get your taxes done using TurboTax

Staring with tax year 2020.  Did turbo tax install more measures to stop people from sharing turbo tax.

I and the 2nd user on this CD and when I downloaded updates I was locked out with a warning I was 

not registered with the proper number.  If the first guy gave me his number to make it work, I would have

access to see his taxes.  Am I right?  Way to go TurboTax. More money for you.