Why are lookalike username derivatives also being locked?

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WhatsApp Locks Lookalike Usernames to Prevent Impersonation Scams

WhatsApp is actively reserving derivative usernames, such as variations in spelling or similar-looking characters, to proactively prevent scammers from impersonating public figures and other individuals. This security measure ensures that high-profile names and their potential lookalike counterparts are held exclusively for legitimate owners, thereby safeguarding users against deceptive account creation.
Preventing Impersonation Through Username Reservation

A representative from WhatsApp explained that the platform is holding onto the most prominent usernames to ensure they can only be claimed by their rightful owners. This strategy extends to reserving variations that could be easily manipulated to create convincing fake accounts, effectively blocking a common tactic used by fraudsters. For instance, handles like @Lawrence\_Wong, @LawrenceWongg, and @LawrenceW0ng have been secured by WhatsApp.
Cybersecurity Experts Affirming the Need for Safeguards

The implementation of these username restrictions is seen by cybersecurity experts as a crucial step in combating scams. These measures are designed to thwart scammers who often employ subtle alterations in spelling, the use of visually similar characters, or the adoption of copied profile pictures to deceive unsuspecting users. Such tactics aim to create an illusion of legitimacy for fraudulent accounts.
Broader Context of Username Feature Implementation

This lockdown of derivative usernames is occurring as WhatsApp rolls out its new username feature globally, which began on June 29. The broader aim of this feature is to enhance user privacy by allowing communication via a username instead of directly exposing mobile numbers. While this reduces the visibility of phone numbers, especially important given their link to online banking and password resets, experts caution that usernames alone do not eliminate scam risks.

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Why are lookalike username derivatives also being locked?

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