On June 28, 2011, German authorities Harry Machura, a 19-year-old German convert to Islam, better known online as the jihadist “Isa Al Khattab,” who allegedly operated a German-language website called the “Islamic Hacker Union” (IHU).  Khattab, active on other online jihadist outlets such as the Shumukh al-Islam forum, is accused of supporting a terrorist organization by posting propaganda seeking to radicalize viewers and to recruit suicide bombers, while supporting the al-Qaeda affiliated Islamic State of Iraq (ISI) and the Islamic Movement of Uzbekistan (IMU).

Khattab's arrest instigated chatter on jihadi forums, in both Arabic and English, as well as a post by a prominent jihadist threatening that the worldwide jihad will continue regardless of the number of arrests of jihadist supporters.