Choose your WhatsApp username carefully

Malwarebytes warns that WhatsApp's new username feature can harm privacy if users reuse Facebook or Instagram handles because linking accounts via Meta's Accounts Center makes identities across Meta apps easier to correlate and increases risk of targeted impersonation or social‑engineering. The article advises choosing unique WhatsApp‑only usernames, using hard‑to‑guess identifiers, enabling username keys and contact restrictions, and adjusting privacy settings to reduce linkage and abuse.