Billionaire Elon Musk took to X to slam Meta's WhatsApp after whistleblowers said private chats on the messaging platform can be read by the company, despite promises of end-to-end encryption.

Axar.az reports that Musk wrote on his X account: "WhatsApp is not secure. Even Signal is questionable. Use X Chat," he wrote on X, according to the Economic Times.

Will Cathcart, head of WhatsApp at Meta, responded to Musk's post, dismissing the reports as false.

"WhatsApp can’t read messages because the encryption keys are stored on your phone and we don’t have access to them. This is a no-merit, headline-seeking lawsuit brought by the very same firm defending NSO after their spyware attacked journalists and government officials," his post read.