Cyberterrorists are using a series of online forums and at least one social-networking site, PalTalk, to recruit people to their cause, Evan Kohlmann, a senior investigator and private consultant for Global Terror Alert, said at the International Conference on Cyber Security 2009 in New York. Many of these people never actually meet in person, but conspire online to launch both cyberterrorist and physical terrorist attacks such as suicide bombings, he said.

Global Terror Alert is an online clearinghouse of information for counter-terrorist researchers, analysts and policymakers. Kohlmann also acts as a consultant to law-enforcement agencies on terrorist cases.

At the conference, Kohlmann outlined Operation Praline, a sting operation in the U.K. that ultimately uncovered a would-be terrorist network in three countries led by Aabid Khan, a then-19-year-old Briton.

Khan, who was arrested in June 2006 when he was returning from a trip to Pakistan, used online forums and chat rooms to "meet" people and essentially became "a terrorist recruiter using the Internet," Kohlmann said. When he was apprehended, law-enforcement officials had reason to believe he was planning to set off bombs in Washington, D.C., and New York.

Khan, who promoted a "worldwide" war against people who did not support Al Qaeda, also was the ring-leader for other terrorist plots hatched in the U.K. and Canada; the perpetrators of those -- most notably a group of 17 men arrested in Toronto just before Khan's own arrest -- were apprehended before the acts were carried out.

Khan used a series of so-called jihadi online forums where people who support Al Qaeda and aim to wage terrorist attacks share their ideas, Kohlmann said, calling these sites the "Facebook and MySpace" of cyberterrorists. Khan also encouraged mounting cyberattacks on people who did not support his viewpoint, he said.

While his reference to social networks was meant as a comparison, people have actually used PalTalk, a chat-room hosting site, to host a live question-and-answer with people they alleged to be Al-Qaeda leaders, Kohlmann said. He said that he's not sure if the company "actually realizes what is going on with their chat rooms," but that the chat room in question is well known among members of jihadi forums.

"In this case, we are particularly talking about a single chat room, with a slightly-changing-but-mostly-static identifiable name, accessible via the official PalTalk chat room index," he said via e-mail a day after his presentation in New York. "This chat room has been routinely advertised on jihadi Web forums, and it is used on a day-to-day basis to trade download links for Al Qaeda propaganda videos [and] terrorist instructional manuals ... If the company hasn't gotten a hint of any of this by now, then they really need to start re-considering their security policies."