The Defence Community comprises of:
"Western" organisations, eg:
The NSA, CIA, FBI.
The mossad, the IDF, the Shin Bet.
Scotland Yard, MI-5.
More 'nefarious' organisations:
Russia, People's Republic of China, North Korea, Cuba
Iran (incl Hamas, the Hizbullah)
The Russian mafia, the Sicilian mafia, the Yakuzah.
Individuals, including:
Fictional entities such as:
Deep Thought - a powerful supercomputer that can crack RSA, or post-quantum encryptions at the blink of the eye ( Reference 1 ; "Fear is the path to the dark side" )
They avoid mass-surveillance and instead rely on observers’ reports. During crime prevention, they profile the fairy (a hacker/etc.) who intends to perform the crime (due to being obsessed/etc.) by profiling him: constructing a static model of him. This model is temporary, and can and likely will get out-pf-date, given his mind is dynamic.
They are mainly concerned with preventing physical pain and peril.