I too was worried and totally regretted filling out my bank info like an idiot. I was like, "Holy S***! Did I just fall for a phishing scam?" I promptly called TurboTax (2 times) and checked with them about this. They specifically didn't know, but said that something like that was happening. I also saw this link,
However, it could be a very good phishing scam. My bank account hasn't been cleared out yet, and hopefully it won't, but I wish TurboTax would inform their employees this is out there so they could reassure those of us who call that this is legitimate.
UPDATE -- Contacted Intuit Security about the email and received this response: