Create a map or photos indicating the range of each relevant wireless access point.
Materials Needed
A portable wireless device (like an Android phone/tablet) is useful to map the
network boundaries without causing undue suspicion. Some Apps like Wifi analyzer
and Wifi Mapper can help.
Considerations
Despite this exercise covering only broadcast data, check the local laws which might
cover this process before conducting it.
Consider how it looks to third parties as you are scanning a network, especially from
outside an office.
Walkthrough
Map the range of the organizations wireless network outside of office space, using wifite
or other tools to track network strength.
A variety of apps and tools can support this work without reosting to professional "wifi
site survey" tools. If the Office Mapping exercise has taken place, that map can serve as
the starting point to expand the map outside the office. If using a third party tool or app,
ensure that the app is not sharing sensitive data. Using simple signal strength monitors
in combination with location notes is more than sufficient. In Linux systems, one can use
wavemon, kismet, wifite, and even the networkmanager command line tools to track
visible networks and their strengths as described on StackExchange:
watch
"nmcli -f "CHAN,BARS,SIGNAL,SSID" d wifi list ifname wlx10feed21ae1d
| sort -n"
https://www.netspotapp.com/ (OSX, Windows, free for non-commercial uses)
http://wifianalyzer.mobi, http://wifiheat.com/ (Android)
Recommendation
Depending on office layout, moving the wireless access point may help to reduce how far
the network is transmitted outside of the office space, and changing devices which do not
move to better enable this without loss of functionality.
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