Yahoo Mail Now Accessible Without Password (Latinos Post)
“You log into your Yahoo account using your normal passwords. In the security settings, you turn on on-demand passwords and register your phone. Next time you try to login, the password field is replaced by a button that says ‘send my password,’ and the company texts a four-character password to your phone.”
There are, however, critics of this approach. See Yahoo’s attempt to kill off passwords raises security concerns at Computer Weekly.