Mac OS X 10.10 disable USB ports

Question

Can anyone tell me how to disable all usb-ports on OSX 10.10 (Yosemite)? We\'ve got a large number of iMacs setup, where we don\'t want the user to be able to control/use USB po

Answer 1

Eventually found a solution, i now use

cd /System/Library/Extensions/
sudo kextunload IOUSBMassStorageClass.kext

and after that all usbs are disabled.