Telegram CEO: ‘Have to be braindead to believe WhatsApp is secure’

The Russian billionaire’s comments come amid a class-action lawsuit against Meta-owned WhatsApp in San Francisco, accusing it of accessing users’ messages, contradicting end-to-end encryption (E2EE) promises. “You’d have to be braindead to believe WhatsApp is secure in 2026. When we analyzed how WhatsApp implemented its “encryption”, we found multiple attack vectors,” Pavel Durov wrote on X (formerly known as Twitter).An international group of plaintiffs has filed a lawsuit in the US District Court for Northern California. It challenges Meta’s marketing of E2EE feature, a security standard which the company claims protects the messages on the app and ensures only the sender and recipient can read a message. The lawsuit claims that Meta’s privacy claims are false as the company WhatsApp “store, analyze, and can access virtually all of WhatsApp users’ purportedly ‘private’ communications”. The plaintiffs represented users from India, Brazil, Australia, Mexico and South Africa. It also alleges that the company retains the ability to decrypt and review the substance of messages for data analysis and internal monitoring. Is WhatsApp really secure ?