Websites for Israel 's Israel Radio and elections agency appeared to be down Sunday . Cyberattackers ' own website was itself hacked ; it played Israel 's national anthem . The video shows a masked person appearing to read . `` Step two , we will discover your future plans and show your crimes against humanity to the whole world , '' the speaker said . Hackers can do `` no real damage , '' Anonymous Arab cyberchief says . Group called Israeli announced attack plan Sunday .
Websites for Israel 's Israel Radio and elections agency appeared to be down Sunday . Cyberattackers ' own website was itself hacked ; it played Israel 's national anthem . Hackers can do `` no real damage , '' Anonymous Arab cyberchief says . Group called Israeli announced attack plan Sunday .