FYI: 0-click iMessage attack
This crazy iPhone hack is described as the most sophisticated attack ever, but you're probably safe
Kaspersky says Operation Triangulation is the most sophisticated iPhone hack ever, involving a mysterious hidden hardware component.
bgr.com
Operation Triangulation: The last (hardware) mystery
Recent iPhone models have additional hardware-based security protection for sensitive regions of the kernel memory. We discovered that to bypass this hardware-based security protection, the attackers used another hardware feature of Apple-designed SoCs.
securelist.com