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They may be at war, but these three men won't have to fire a gun.

A trio of anonymous British computer experts have embarked on a mission to expose and destroy the ISIS online propaganda and recruitment network.

Using hack attacks and digital surveillance, they claim to have identified the ring leaders of a group dedicated to wooing young men to the ISIS cause.

"We go after information and use it to expose supporters of ISIS," they told us during a series of conversations using identity-obscuring communications services.

"If we can expose the people running ISIS-associated hacking crews, then police and the military could use that information to find many more people [and potential recruits] they are linked to."

The three men have banded together to form a group called Global Vigilance which they intend to fund using Bitcoin donations.

Their language and goal is similar to Anonymous, which is fighting its own battle against ISIS, but the three men claim to be independent.

The trio told us they were hacktivists in the past and "rubbed shoulders with undesirables", allowing them to gain the skills needed to hack into accounts.

They asked us not to reveal their identities, for fear of reprisals, and handed us a dossier of information and photographs of the men they allege to be leaders of a pro-Palestine group called AnonGhost.

This information suggests the group is run by young men living apparently normal lives in countries around the Middle East as well as Indonesia and Africa.

The pictures also offer proof these men were linked to some of the hacks associated with Anonghost, which have included attacks on bank websites and French government websites.

This shadowy organisation was once a relatively harmless group of hacktivists associated with Anonymous, but they have recently admitted working on behalf on ISIS and were responsible for the hack attacks which followed the Charlie Hebdo attacks.

"ISIS are planning to use Anonghost to infiltrate the pro-Palestinian movement and even Anonymous," they said.

These claims are backed up by a shift in the tactics of AnonGhost. It started off acting like Anonymous, but has now organised a number of attacks on western websites.

By attacking websites and spreading propaganda, they hope to woo young men and women to their cause.

Just like the real life jihadis who film glossy video nasties and beam them across the world, the Islamist hackers seek attention - which could be their downfall.

"Fame is their heroin and they are addicted to it. This makes them vulnerable," the hackers added.

The information they gave us has now been sent to the police. We will update you if it leads to an investigation.