warchalking

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warchalking

(ˈwɔːtʃɔːkɪŋ)
n
(Computer Science) the practice of marking chalk symbols on walls and pavements at places where local wireless internet connections may be obtained for free via a computer, usually without permission
[C21: from w(ireless) a(cess) r(evolution) + gerund of chalk]
ˈwarchalker n
Translations

warchalking

n (Comput, Telec) → Warchalking nt
References in periodicals archive ?
The practice of illegally logging on to another person's connection has led to "war chalking", where people draw symbols on walls or pavements to let others know a wireless connection can be made from there.
(Search the phrase "war chalking" to learn more.) All access points offer some limited security, but in most cases it is insufficient.
In big cities, like San Francisco and London, there is a phenomenon called war chalking." Interested folks walk or drive around the city with an antenna made from a Pringles can and software made for sniffing out wireless networks.