Authorities warn that violent online networks involving young people are increasingly spilling over into real-world attacks.

Virtual community known as 'The COM 'is promoting violent extremism, says European Union Counter-Terrorism Coordinator ahead of 9/11 anniversary; incidents increasing over past…

Jihadist groups still pose a major threat to Europe, but 25 years after the 9/11 attacks a new menace driven by young people online is emerging