I get an error when I try and login, "Your account is locked for security reasons"

This happens because somebody, perhaps you, or perhaps an automated bot, made many requests with a wrong password in a short period of time to gain access to your account. Most times, the person had no interest in gaining access, but knew this action would forbid you from gaining access yourself.

To fix this, login at http://login.yahoo.com/config/login. The first attempt will fail, say incorrect password or something. It's the second attempt that matters. What you will see this time, is that you have a word verification. This is a secure system by which only humans could be making the request, bots cannot see the text, they see encrypted numbers.

For some, this is it, the account will log in again! For others, it's not so. You have to wait up to 48hrs for the account to come back.