France’s culture minister is to call an urgent meeting of French media groups to assess their vulnerability to hacking after the public service television network TV5Monde was taken over by individuals claiming to belong to Islamic State, blacking out broadcasts as well as hacking its websites and Facebook page.

All TV5Monde broadcasts were brought down in a blackout between 10pm and 1am local time on Wednesday to Thursday by hackers claiming allegiance to Isis. They were able to seize control of the television network founded by the French government in 1984, simultaneously hacking 11 channels as well as its website and social media accounts.

http://www.theguardian.com/world/2015/apr/09/french-tv-network-tv5monde-hijacked-by-pro-isis-hackers