The author makes the argument that Wi-Fi hotspots can be unsafe for the vast majority of non-corporate users. He argues that Wi-Fi hotspots can be easily "spoofed" and that it is difficult, or impossible, for a casual user to determine if their machine is secure when using a public hotspot. The vast majority of public Wi-Fi hotspots do not provide a manner to authenticate whether a machine is connected to a legitimate hotspot. Also, the author is concerned about software that can decode user passwords that are sent out across the network. He also sees "spoofed" Web sites as a problem; by setting up these Web sites, hackers can "phish" for users' data.