https://www.theguardian.com/technology/2019/nov/01/whatsapp-hack-is-serious-rights-violation-say-alleged-victims

Activists speak out after being warned of alleged cyber-attack to infiltrate mobile phones

More than a dozen pro-democracy activists, journalists and academics have spoken out after WhatsApp privately warned them they had allegedly been the victims of cyber-attacks designed to secretly infiltrate their mobile phones.