Seemed useful, but I've been informed that I'm not allowed to sign in when I'm physically outside the US, which is most of the time (VPN doesn't seem to help either, somehow). To add insult to injury, the error message actually just days "Please try again in a few moments" - it was only after contacting support that I found out it was because of my location. So thanks a lot for not only blocking me from my own account, but also wasting a bunch of my time.