1. Ever heard of this term : USB CONDOM..first as I read about this though like some tech humour but it was not...it was for real.This device prevents accidental data exchange when device is plugged into someone else’s computer or a public charging station. This is achieved by blocking the data pins on any USB cable and allowing only power to flow through. This minimizes opportunities to steal your data or install malware on your mobile device.
2. As I read this ,the term became ok :-) to discuss around in my blog here.So the basic Juicejacking attack becomes null and void by the use of a USB Condom.
"The simple board at its core carries only the current from the outside pins on a USB connector — which pass along the 5V needed to charge. The middle pins that would normally transmit data can’t, as there’s no circuitry to do so on the Condom. You’ll be able to confidently charge in public as long as you’ve got your USB Condom handy, safe in the knowledge that no juice jacker is going to mess with your precious device." from : http://www.geek.com