After the above actions, I received a legitimate email from Dell thanking me for setting up my Dell account. Although I opened it long ago, the address information was significantly out of date, so it seems this alert was simply to assure my personal account information was updated and complete. While I've heard of scams that ask for personal information and access to your computer, along with a subsequent charge to fix it, this particular case seems to be legitimate. While SupportAssist seems like it could be handy, it bothered me that was installed and executed without my consent. It would have been better for Dell to send an email explaining and offering the new feature, so it would not be such a surprise. 
This morning I had a popup indicating it was Dell SupportAssist, with an "Alert" that there was an issue with my PC. I did a quick verification on the WEB that SupportAssist is a legitimate program, and observed it was installed (or possibly updated) 2 days ago, assuming from an automatic Dell Update. To continue, the program requested that I confirm ownership by logging into my Dell account. After doing so, it requested my name, phone and email to assist me with my alert.  Is this normal setup for this tool? Although suspicious, I provided the information, which seemed to hang when I tried to continue. Now concerned, I manually started SupportAssist, noticing it had a different interface. I killed the previous pop-up, and changed my Dell password with a slight hope that I was in time to avoid any identity theft, etc. I ran a scan with SupportAssist and no issues were found. I ran my anti-virus but no issues were found. Is the above behavior normal for Dell SupportAssist? Is there any known virus (and how to remove) that appears as this Dell software? I have an XPS 12. Concerned... 
SCAM or Virus posing as Dell SupportAssist?