Jewish Internet Defense Force
The Jewish Internet Defense Force (JIDF) was an organization that ran social media campaigns from 2000 to 2014 against websites and Facebook groups that it described as Islamic terrorism or antisemitism. The group's website, whose former domain now links to a gambling site, described the JIDF as a "private, independent, non-violent protest organization representing a collective of activists".
Source: Wikipedia — Jewish Internet Defense Force (CC BY-SA 4.0)