WhatsApp is implementing a new username system allowing users to choose a unique handle separate from their phone number. This feature aims to enhance privacy by enabling users to control who can see their phone number. However, experts express concerns that usernames could introduce new security risks and complexities. The change potentially makes it easier to identify users and could facilitate unwanted contact or scams. While usernames are optional, opting in may expose users to increased visibility. WhatsApp asserts the system is designed to improve user control and privacy, but its effects on overall cybersecurity remain to be seen. The rollout is currently in testing phases and is expected to provide more options for controlling online presence within the platform.