WhatsApp is developing a new feature called Username Key to improve the first-time chat experience on Android devices.
This feature is a continuation of the username feature and serves as an additional layer of security with optional access set by the account owner. The code acts as a safeguard because only individuals who know the password can start a chat while other users cannot send messages or make calls.
Through this approach, a person can share a username publicly while controlling who can actually contact them. This step thus helps reduce spam and unwanted messages without affecting access.
The feature will be displayed on the screen when a user tries to start a chat for the first time. If the username key is entered correctly, the conversation can continue as usual. However, if the wrong access is entered, access will be denied.
The combination of username and username key is expected to form a more secure communication system. This feature also allows the first-time chat experience to occur without exposing phone numbers while ensuring that only authorized individuals can send messages.
Currently, both are still in the development phase.
