Croatian Revolution Hackers (CRH; Croatian: Hakeri Hrvatske Revolucije, HHR) was a black hat hacking group originating in Croatia, known for using DDoS, defacement, and other methods against targeted websites in Croatia and neighboring countries (Serbia, Bosnia and Herzegovina, Montenegro, etc.)
Josip Mamic) and Meho1337 (Facebook-Meho CroatianHackers) Inco1337 (Facebook-Inco Fiju Fic Ranger).
vlada.hr), the Croatian Police (policija.hr and mup.hr), websites of big banks (Hypo, Raiffeisen, etc.)
Operation Croatian Blackout (#OpCroBO) is the most notable series of attack perpetrated by CRH.
The group claimed to have shut down over 1000 websites originating from Croatia, including the biggest media ones (dnevnik.hr, 24sata.hr, and such), and to have defaced and stolen data from Croatian Radiotelevision (hrt.hr).