With the link I provided, a hacker can use iOS emulated in QEMU for:
• Restore / Boot
• Software rendering
• Kernel and userspace debugging
• Pairing with the host
• Serial / SSH access
• Multitouch
• Network
• Install and run any arbitrary IPA
Unlike a locked-down physical Apple device. It's a good starting point.
I'm much more convinced that you're competent in the field of forensics. But I still don't think suspicious network traffic can be categorically defined as a 'device breach.'
For all you know, the traffic you've observed and deem malicious could just as well have been destined for Apple servers.