WhatsApp Usernames Create New Impersonation Risks Despite Privacy Claims

Meta's push toward username-based messaging—framed as a privacy upgrade—creates a practical identity problem: usernames are easier to spoof than phone numbers, and enforcement relies on user reporting rather than technical barriers. WhatsApp's 2+ billion users include high-value targets (celebrities, businesses, journalists) and ordinary people without sophisticated verification habits. At scale, impersonation poses trust erosion and potential liability for Meta.