How does Equifax or TransUnion handle the case where someone else creates the account before you do? You try to sign up correctly, then it emails the fake persons email for permission? How does that make any sense. "Hello scammer, John Doe would like to access his Equifax account. Do you want to give him permission?" I agree the Experian way is not good either, but how is the above handled?
Do you need to sign up for any of these services? Sounds horrible all around to me (not from the US)
They already have the well-shared data that determines much of your life. Signing up is so you can glimpse it too.