iPads do have vulnerabilities, which allow code to be executed with full admin, which means you can delete, or wipe files remotely if you know your target IP or hostname.
Apple security flaw in iPhones, iPads and Macs: which devices are affected?
Additionally, iPads have a backdoor, which is more like a feature, not a bug, a flaw. It is meant for Apple for diagnostics, but do you really know if NSA can or cannot access this capability. Even if Apple doesn't give permission, they can figure it out with a vulnerability assessment, and they do that for sure
This feature needs to be executed in proximity, so a black hat hacker would need to be in proximity of Aziz's iPad, but Wifi can be used within 50m or 100m. So someone in proximity of FarSIght could do that
iSpy? Researcher exposes backdoor in iPhones and iPads