Yahoo has also taken over email for Verizon, which I use. Two days ago, without warning or notice, I suddenly couldn't log into my verizon email. I called verizon customer support, and the lady had no idea why I was locked out of my account. After jumping through hoops, I was able to reset.

Yesterday, my wife (same account) was locked out as well.

I'm wondering just how big of an issue this is.