True, but the ones that use the dynamic encryption can do a reasonably good job along with a firewall and router. The golden rule is "Nothing is bullet proof"
One of the locals mentioned doing a bit of "war driving" around town just for curiosity. About 80 to 90% of the networks heard were unencrypted AND over half of those _still_used_ the_default_name_and_PW. I use hard wired Cat5e in a gigabit network as with the amount of traffic wireless is just too slow even if it is full duplex.
NOTE I only receive the two amateur radio news groups. Roger Halstead (K8RI & ARRL life member) (N833R, S# CD-2 Worlds oldest Debonair)
Roger