Passwords by New 'Account Key'

Recently, Yahoo Mail Update Ditches Passwords by New 'Account Key' Service

Day by day, Yahoo is active with building new experiments for their user’s security related to their yahoo mail and their individual and very essential documents. Some days ago, Yahoo confirmed that all the users of the yahoo mail both iOS & Android will have access to a service known “Yahoo Account Key”, through that now with a tap on yes or no, users can specify it is a genuine attempt to get into the account or reject illegal access immediately.