From what I have been able to get from IT is that end users just loading what they want causes more of a resource drain rather than a real security risk.
Take the latest iOS debacle, everyone loaded up the new os and then complained to their IT team that it bricked their phone. IT teams like to test OS upgrades prior to releasing them so they can test then to ensure they work with the applied ecosystem.
They have a "macro" type approach to what they do and a simple issue can cause systemic problems...
Just be sympathetic to their demands prior to your self interests to test certain software.
I realize as I type this I am being somewhat hypocritical but it is what it is...be nice to your IT department if you want them on your side.
01-17-15 11:05 PM