I literally used the my documents for uploading .tax files and .pdf files for about 8 years worth of TurboTax submissions so I would not have to worry about a computer or bad actors on other storage sites. Now it appears Intuit has refreshed the website as if I was new. And no, I didn't use or have a different login. And I do recall when Intuit went to a single sign on for all their product offerings. It worries me when I trust this company to keep all my documents regardless of whether I used online or CD back in the day. When I upload a document from 2014, I expect it to STAY PUT.
Terrible service, right? I filed on line with Intuit a few years ago, and it was all gone the following year. Fortunately I kept a copy of a PDF, otherwise it would have been a disaster. So, I never did that again. I keep my records in several places, including two PCs and two thumb drives, one in my car's trunk in a waterproof container. Maybe you can do something like that?