Some WiFi spots will not work with the old 802.11b.
by R. Proffitt - 4/28/12 10:02 AM
In Reply to: Public WiFi hotspots. See avail n'works but can't connect. by IamStumped
So if this machine is that useful, I'd get the 8 buck device for places that it won't work at.
This is NOT a security issue. It's something else.
Research what 802.11b is and then what 802.11g is.