BBC is reporting that Wireless Networks are not as solid and secure as people would want to believe. Vivek Ramachandran, A Security Researcher from Airtight Networks, came up with an attack, which he calls the "Cafe Latte" attack, which would allow a criminal to eliminate any firewall protection and target the laptop.
The difference in this strategy lies in the fact that this time around, the focus is on the wireless clients.
The root of the vulnerability lie in the fact that WEP (Wired Equivalent Privacy) is still one of the more popular ways of securing your wireless network although it has been superseded since by WPA (WiFi Protected Access) version 1 and 2.
WEP is still offered as an option mainly to support backward compatibility and Infoworld observes that more than 40% of businesses continue to use WEP.
One commentator points out that WEP is inherently insecure because you have to blindly trust your hotspot operator, hoping that it hasn't been hacked.
The only solution would be to use a Virtual Private Network for all your data where possible.