Casablanca – A new class action lawsuit filed in California federal court is putting one of WhatsApp’s biggest promises under fresh scrutiny, with plaintiffs alleging that private messages may have been accessed by Meta employees and outside contractors despite years of assurances that chats are protected by end-to-end encryption.
Filed by Brian Y. Shirazi and Nida Samson in the US District Court for the Northern District of California, the case names Meta Platforms, WhatsApp LLC, Accenture PLC, and Accenture LLP as defendants.
The proposed class would cover WhatsApp users nationwide who sent or received messages on the platform between April 5, 2016, and the present, with separate subclasses for users in California and Pennsylvania.
At the heart of the complaint is WhatsApp’s long-running claim that “not even WhatsApp” can read users’ personal messages. The plaintiffs argue that this promise did not match what was allegedly happening behind the scenes, claiming the company intercepted, stored, accessed, and viewed private communications, while also allowing employees, contractors, and other third parties to do the same without users’ knowledge or consent.
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The lawsuit points to whistleblower allegations that were reportedly shared with federal investigators, claiming Meta employees and outside reviewers had broad access to messages users believed were encrypted and inaccessible. According to the complaint, that amounted to both a serious invasion of privacy and a breach of the platform’s promises to its users.
The plaintiffs accuse the companies of breach of contract and violations of California privacy and data laws, false advertising rules, unfair competition statutes, and the Pennsylvania Wiretapping and Electronic Surveillance Act. They are seeking a jury trial along with injunctive relief and statutory, compensatory, exemplary, and punitive damages.
The case also quickly became ammunition in the long-running rivalry between major messaging platforms. Elon Musk seized the opportunity to promote his platform. “Use X Chat for messaging and voice/video calls. Comes with this great benefit of actual privacy,” Musk wrote on X.
In a comment, WhatsApp has flatly rejected the allegations. The company described the claims as “categorically false and absurd,” saying the app has relied on the Signal protocol for a decade and that messages cannot be read by anyone other than the sender and the recipient. Meta referred further questions back to that statement.
The claims in this lawsuit are categorically false and absurd. WhatsApp has been end-to-end encrypted using the Signal protocol for a decade so your messages cannot be read by anyone other than the sender and recipient.
— WhatsApp (@WhatsApp) April 9, 2026
Telegram founder Pavel Durov escalated the criticism, calling WhatsApp’s encryption claims “a giant consumer fraud” and accusing the company of misleading billions of users.
The lawsuit also revives broader questions around Meta’s privacy commitments, coming just after the company confirmed it would end optional end-to-end encryption for Instagram direct messages on May 8.
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