Get your taxes done using TurboTax

I sent the entire return electronically through TurboTax.

When I sent the check, I mailed it separately without the full return.I think I just sent it with the first two pages of the 1040 or whatever TurboTax told me to send it with. .....  Is this the issue? Should I have sent the entire 50+page return with the check? ..... It does offer a way to fax it to them - but I was worried about using that method for security purposes.  Isn't faxing risky from a security perspective? ....  Also, if it's a scam, I'm worried about faxing all of  my financial details to them by fax.