Two factor authentication
You had recently implemented two factor authentication, which, in my opinion, is a great idea. Then the other day, when I was logging in, you provided me with the abiity to turn off this feature, at least that is the impression I received from the task I was asked to perfor when when logging in. I chose to leave this feature enabled.
Now when I log in by providing my password, I am immediately taken to my inbox and am not asked to provide a second level of login confirmation. When I check my settings I can see that I still have two factor authentication enabled, yet it is not being used. If the user has chosen to use this feature, then it would be nice to have it function when they are logging in.

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We unfortunately do not have the tools to help with account or sign-in issues. Very sorry! This forum is only for bugs/suggestions in the product itself. We recommend contacting our Customer Care team at help.yahoo.com. They do have the tools. Thanks!