ARLA/CLUSTER: Em 1986 uma criança de 10 anos, podia interceptar mensagens de espionagem utilizando um simples radio de ondas curtas

[João Costa > CT1FBF]

Spy stations on short wave radio

Shane Harris writes in the Daily Beast about how in 1986, aged 10, he
intercepted spy messages using a short wave radio

He says: The frequency I'd stumbled upon was broadcasting a “numbers
station.” The message was almost certainly sent by the Central
Intelligence Agency, which broadcast numbers over shortwave during the
Cold War from a facility in Warrenton, Va., about a 10-hour drive from
my home at the time in the suburbs of Nashville, Tenn.

That series of seemingly random numbers was actually a coded message,
which anyone with an inexpensive shortwave radio could hear, but that
could only be understood by someone with the right key.

Read the full story at
http://www.thedailybeast.com/articles/2016/03/06/the-stupidly-simple-spy-messages-no-computer-could-decode.html