Hackers are attracted by the opportunity to break into the networks of companies taking part in such fairs. Almost all firms which participate in such events set up their own local networks, which often connect to the companys main server. These local networks usually have low security settings, and are set up quickly; these factors increase the risk of hacker attacks. In China, most commonly used equipment was manufactured by Agere and Cisco (Linksys), while in Moscow, Cisco and D-Link were the most common manufacturers.”]
Source: https://securelist.com/war-driving-in-germany-cebit2006/36076/