Free charging stations can hack your phone, here's how to protect yourself
techrepublic.com
techrepublic.com
I have to say this seems like a very minor issue. Its pretty much exactly what I would think gets transmitted. No personal data really at all.
http://i869.photobucket.com/albums/ab259/kvnsnyder/USB-cable...
Such a modified cable would solve the described problem -- charge the device but not accept data.
Also inspect you condom to make sure it isn't malicious itself. Or make your own.
[0] https://www.amazon.com/Syncstop-The-Original-USB-Condom/dp/B...
Four-Tops-Itis
stop the presses.