A revamped version of Yahoo Mail is the first service to get the new Account Key authorization system. Yahoo intends to add it to other apps in the future.

Starting on Thursday, the company announced, users of the Yahoo Mail app on both iOS and Android will have access to a new service called Yahoo Account Key, which uses smartphones to verify ...

Yahoo has another login authentication option called the Yahoo Account Key. With this, instead of entering passwords, every time you login to your Yahoo account, you'll get a notification on your ...

It may be hard to tell if someone has hacked your Yahoo Mail account ... to send you a code via text message the first time you try to sign in using a new device or from a new location using your ...