Wireless access points can announce their presence to wireless-enabled computers. This is
referred to as “identifier broadcasting.” In certain situations, identifier broadcasting is desirable.
For instance, an internet cafe would want its customers to easily find its access point, so it would
leave identifier broadcasting enabled.
However, you’re the only one who needs to know you have a wireless network in your home. To
make your network invisible to others, see your access point’s user manual for instructions on
disabling identifier broadcasting. (In Apple wireless networking, this is called “creating a closed
network.”)
While this kind of “security through obscurity” is never foolproof, it’s a starting point for
securing your wireless network.
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