Short description of DeviceShield 3.30: Deviceshield acts as firewall that works on the INSIDE to control access to ALL Removable Media Devices. It protects your data from inside security breaches by removeable media devices such as USB memory sticks, CD/DVD drives, Firewire etc †" insuring the integrity of your commercial data. With auto-encyption technology and unique file filtering technology DeviceShield is extremely flexible allowing you to control how a device is used.