French broadcaster TV5Monde hacked in April 2015, knocking 12 of its channels offline for 18 hours. Social media channels run by the broadcaster were hijacked and used to spew jihadist propaganda. Attackers used one of two camera-control servers as a “beachhead for privilege escalation,” expert says. The attack appeared to have been launched by the group known as Fancy Bear, APT28, Pawn Storm Storm, Sandworm, Sednit and GRUAPT28. The group is allegedly linked to Russia’s military intelligence group, the U.S. Democratic National Committee.”]
Source: https://www.cuinfosecurity.com/french-officials-detail-fancy-bear-hack-tv5monde-a-9983