USB Block is a data leak prevention tool. It prevents leakage and copy of your data to USB Drives, External Drives, CDs/DVDs or other such portable devices. Once installed, USB Block lets you block all such drives and devices that do not belong to you.
With USB Block, you can share your PC with anyone without fear of data theft. USB Block also lets you create a list of devices and drives you authorize with a password so that only your USB drives or CDs can be accessed on your computer.