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Graph theory in the operational environment

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This undated presentation from GCHQ’s Information and Communications Technology Research department discusses the agency’s efforts in finding “closed loops” of cheap burner phones, a major focus for the agency in the wake of the 7/7 London bombings: see the Intercept article How London’s 7/7 Bombings Led to “Unprecedented” Surveillance Tactics, 1 March 2018.
TOP SECRET STRAP1 Graph theory in the operational environment TOP SECRET STRAP1 What I will cover Finding operational closed loops: - The reality of target behaviour - ...

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