Al-Qassam Brigades, the military wing of Hamas, claimed responsibility for the hack. It took over the satellite feed of Channel 10 for a few minutes to broadcast images of wounded civillians and propaganda messages directed at Israeli citizens. Another message, clearly directed at the mothers of Israeli soldiers, sent a stark warning: ‘If you dont want your sons to be prisoners or to be killed then call them quickly to go back home It is not clear how the hackers managed to inject their messages into Channel 10s programming.”]
Source: https://www.bitdefender.com/blog/hotforsecurity/israeli-tv-hijacked-by-hamas-hackers/