SIGINT
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 SIGINT    | |
|---|---|
 Journalist Duncan Campbell pictured at eavesdropping base RAF Menwith Hill | |
| Interest of | Hans van de Ven |
SIGINT or Signals intelligence is intelligence-gathering by interception of signals, whether communications between people COMINT or communications intelligence or from electronic signals not directly used in communication ELINT or electronic intelligence.
As sensitive information is often encrypted, signals intelligence in turn involves the use of cryptanalysis to decipher the messages. Traffic analysis—the study of who is signalling whom and in what quantity—is also used to derive information.[1]
Zimmermann Telegram
Intel Today reports:
- On 16 January 1917, British code breakers intercepted an encrypted message from German foreign secretary Arthur Zimmermann intended for Heinrich von Eckardt, the German ambassador to Mexico. The decryption of the Zimmermann Telegram is widely described as the most significant intelligence triumph for Britain during World War I. The story demonstrates that SIGINT can influence the course of History.[2]
An example
| Page name | Description |
|---|---|
| Maximator-Alliance | Intelligence Alliance, similar to Five Eyes. |
Related Documents
| Title | Type | Publication date | Author(s) | Description |
|---|---|---|---|---|
| Document:GCHQ and Me: My Life Unmasking British Eavesdroppers | Article | 3 August 2015 | Duncan Campbell | No one at the May 2015 conference on intelligence, security and privacy argued against greater openness. Thanks to Edward Snowden and those who courageously came before, the need for public accountability and review has become unassailable. |
| File:British Bases in Cyprus and Signals Intelligence.pdf | report | 24 January 2012 | Giorgos Georgiou |
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