Disable Modprobe Loading of USB Storage Driver
If USB storage devices should not be used, the modprobe program used for automatic kernel module loading should be configured to not load the USB storage driver upon demand.
Add the following line to /etc/modprobe.conf to prevent loading of the usb-storage kernel module:
install usb-storage /bin/true
This will prevent the modprobe program from loading the usb-storage module, but will not prevent an administrator (or another program) from using the insmod program to load the module manually.
