Can Anywhere USB devices encrypt traffic ?
The AnywhereUSB product line does not offer an encryption feature for USB traffic.
The AWUSB does not use encryption regarding USB traffic.
The data would be in clear text. AWUSB’s are intended to be deployed in trusted LAN environments.
This appears to have changed: http://knowledge.digi.com/articles/Knowledge_Base_Article/About-AnywhereUSB-USB-encryption