Calif CEO @XorNinja reveals how his team hacked an iPhone and maintained root access even after rebooting or updating the device, challenging one of the most common pieces of iPhone security advice: "In software security, the iPhone is like the holy grail of vulnerability exploitation." "Since Apple introduced MIE, which is a hardware mitigation mechanism, since last year, nobody actually has published any public iPhone exploit. So we really, really wanted to hack the iPhone for that reason." "We managed to get root access to the iPhone and even persistent access." "In the past people said one of the best practices for iPhone security is to reboot your phone after a while because all the malware would go away." "But we show that there's ways to persist our attacks even if you reboot or you upgrade your iPhone." @calif_io