TurboTax is used to handle some of your most confidential information. Using a compromised version of the software puts your entire financial identity at risk. Hackers can use the information found in your tax returns to commit identity theft, file fraudulent returns in your name, or drain your bank accounts. Legal and Ethical Implications
Resulting in underpayment penalties or missed refunds.
You will have no recourse if the software glitches or if you have questions about your return.
The IRS and state agencies may reject returns filed through unauthorized or outdated software.