Your WhatsApp messages are not being deleted from you iPhone

Your WhatsApp conversations may not be as private as you believed. iOS researcher Jonathan Zdziarski wrote in a blog post Thursday that he has discovered the messenger program is retaining traces of your deleted messages. The company rolled out end-to-end encryption in April for its users, meaning that your message stays private while traveling between devices. WhatsApp doesn't claim to have self-destructing messages, but it does claim: "Deleted messages are permanently deleted from your phone."