It's hard to hack iOS without relying on user interaction, but it can still be done by attacking a softer target: the Wi-Fi chip in most iOS devices, as well as Android mobiles.
Apple's latest iOS update, version 10.3.3, addresses yet another critical bug in the Broadcom43xx Wi-Fi chipset on the iPhone.
The vulnerability, known as 'Broadpwn' (CVE-2017-9417), was discovered by researcher Nitay Artenstein of Exodus Intelligence. He'll detail his hack at the Black Hat conference in August and explain how to move from controlling the chip to hacking the main OS.
Google patched the same issue in its July Android update, which according to Artenstein also affects devices from LG, Google's Nexus phones, and nearly all Samsung flagships.