DBX Tecnologia

Researchers find 131 Chrome extensions cloned to automate WhatsApp spam in Brazil

Cybercrime, News, Policy, Research, Vendors

October 21, 2025

Researchers say 131 rebranded Chrome extensions, sharing a common codebase, were used to automate bulk WhatsApp Web messaging aimed at Brazilian users, a campaign that appears designed to evade platform anti-spam controls and contravene Chrome Web Store rules.