Email, Messaging, & Video Calls Email What is Yahoo Account Key and How Does it Work? How to use Yahoo's no-password login by Luis E. Chavez Saenz Writer Luis Chavez is a former Lifewire writer and a System Administrator with 5+ years' experience writing about technology for end users. our editorial process Luis E. Chavez Saenz Updated on August 03, 2020 Email Yahoo! Mail Gmail Tweet Share Email Passwords can be a liability. If anyone learns your password, they can access your account from anywhere without you noticing. A Yahoo account key is a security feature that Yahoo has enabled for their email services to eliminate the need for a password. This feature allows you to access your email with a simple click on your mobile device without needing to remember and enter a password. You have a physical verification from a trusted device whenever you are trying to access your email account, instead of relying on a hackable string of characters. How to Configure Yahoo Account Key Before you set up your Yahoo Account Key, you will need to meet some requirements: Have access to a Yahoo email account (or create a Yahoo email account)An Android or iOS deviceThe Yahoo Mail app from the Google Play Store or the iOS App Store Download and launch the Yahoo Mail app Sign in to your Yahoo email account. Select the Menu icon on the top left corner. Select the Key icon next to your email address. Select the Set up Account Key button. Select the green checkmark on the Sample Account Key screen. Select the Got it button Confirm your mobile number by selecting the Enable Yahoo Account Key button. If the mobile number that shows up is not yours, select Update my phone number and enter the correct information. You have successfully set up your Yahoo Account Key, select Great, got it! to go back to your Yahoo Mail app. How to Use Your Yahoo Account Key After setting up your Yahoo Account Key, it is time to use it. Launch your web browser. Navigate to https://yahoo.com. Select the Mail button on the top right. Enter your Yahoo email account and select Next. Follow the prompt on your mobile device where you set up the Yahoo Account Key to allow or deny the sign-in request. Select Yes to proceed or No if it was not you who attempted to access your Yahoo email account. If you do not receive the notification on your mobile device, select the Resend button on the link to push it to your mobile device again. After choosing Yes, you will get access to your email account.