The leading cause of data breaches for the past few years has been the loss or theft of laptops and USB storage devices. Criminals seeking for corporate devices could cost your company a million dollars loss by stealing just a $12 USB drive. Instead of relying merely on passwords, it’s essential for businesses to safeguard their data by encrypting the device. It is easy to create an encrypted USB drive in Ubuntu so, at least you could rest easy after the loss of a USB drive knowing that your data is secure.
Source: https://thehackernews.com/2015/06/encrypt-usb-flash-drives.html