This way, you have to physically confirm you’re the one signing in, rather than entering a set of letters and numbers anyone can steal or guess. It’s as simple as tapping “Yes” when a push notification asks “Are you trying to sign in?”
When you try to check your inbox on any device or desktop, you’ll get a push notification on your smartphone to confirm you are actually you not a robot or some terrible dude attempting to steal your identity or hack emails from your grandma who’s just trying to send pictures from her new iPad. Yahoo has announced Account Key, a service you can turn on in the Yahoo Mail smartphone app’s settings which attempts to simplify and secure your mobile email experience. Yahoo users can now just tap a “yes” button to login to email - no password required.