If you factory reset the mobile you may lose access to corporate resources i.e email, WiFi etc on it. I would expect someone in IT to realise the device is not longer under their control. You probably also signed an acceptable usage policy so could end up in front of HR.
Are you sure you're not breaking your contract there. I certainly cannot access my work emails on a non-corporate approved device, both via policy/contract and information security. I'd double-check your contract because for all your worry you might already be breaking it...


