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Broadcast Monitoring

Apr 22,2010 by alperen

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Privacy is easily compromised through “broadcast monitoring,” a form of
eavesdropping. Hackers can set a mobile computer to search out any
wireless network and monitor all broadcast traffic.
When an access point is part of a hub, it is well known that the hub
normally broadcasts all network traffic to all connected devices. This
makes all network traffic vulnerable to hackers who wish to monitor
your data channel. This means that a wireless workstation can monitor
broadcast traffic that could be meant for literally any other client on the wireless network so long as the access point is directly attached to an
Ethernet hub. In order to reduce this problem, it is strongly recommended
that you use a “switch” as opposed to a “hub” when connecting your
access point. A switch dedicates all packets meant for only one wireless
device during any transmission. However, a hub sends out all transmission
packets at once. A switch is a dedicated form of sending traffic, while
a hub allows all connected devices to “share” the bandwidth, leaving your
privacy in jeopardy from anyone who realizes this vulnerability.
105 times read

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