Meta Platforms Inc. is facing an international class-action lawsuit accusing it of misleading billions of WhatsApp users about the platform’s privacy and encryption standards. The case, filed on January 23 in U.S. District Court in San Francisco, alleges that Meta and WhatsApp falsely promised users that their messages were fully protected by end-to-end encryption.
According to the complaint, plaintiffs from Australia, Brazil, India, Mexico, and South Africa claim WhatsApp’s assurances of privacy conceal the company’s ability to access, analyze, and store user communications. They say this practice contradicts WhatsApp’s repeated pledge that “only people in this chat can read or listen” to messages. The filing reportedly draws on accounts from unnamed whistleblowers, referencing a related 2025 lawsuit by Attaullah Baig, WhatsApp’s former head of security, who alleged internal access abuses and insufficient data safeguards.
Law firms Quinn Emanuel Urquhart & Sullivan and Keller Postman are leading the case, seeking class certification that could open the door to one of the largest consumer privacy claims in recent years.
Meta, however, has dismissed the suit as baseless. Company spokesperson Andy Stone called the complaint “a frivolous work of fiction,” asserting that “any claim that people’s WhatsApp messages are not encrypted is categorically false.” Meta insists the platform has used the Signal Protocol to provide true end-to-end encryption for nearly a decade.
