The PwerfulGrekArmy (aka PGA) is a hacker collective focused in the fight against the ISIS propaganda online. Its members have participated in Anonymous Campaigns such as # OpIcarus, # OpISIS And more. The most dangerous hacking crew is PoodleCorp, they attack Youtubers like crazy, says PGA. PGA is targeting ISIS gov sites, pedophile accounts, and Turkish sites, and targets ISIS govt. sites.”]
Source: https://securityaffairs.co/wordpress/49901/hacking/hacker-interviews-pga.html