The account key is a relatively new feature introduced in Yahoo mail. With the growth of cyber threats, passwords can be easily hacked these days. If anyone gets a hint of your password, they can easily log in to your Yahoo mail account. The Yahoo account key eliminates the need to enter a password for enhanced security. With the help of the Yahoo account key, you can access your emails easily from a mobile device and without the need for a password. However, if you no longer need the feature, you can perform Yahoo mail disable account key by following the procedure given below.