Anonymous have sworn to attack the cyber assets of ISIS as revenge for the Paris attack. Its worthy of note that the terrorists used the PlayStation Network chat system to coordinate the attack. If this is confirmed PSN users may be caught in the cross-fire if Anonymous launch a massive attack on the PlayStation network to get at ISIS.
http://news.softpedia.com/news/anonymous-announces-payback-for-the-isis-paris-attacks-496184.shtml
Yesterday, Belgium's Internal Affairs Minister said that ISIS members might have used the built-in PlayStation 4 chat system to coordinate attacks. If this information is confirmed by French investigators, expect the group to take aim at Sony's service in the coming months
http://news.softpedia.com/news/anonymous-announces-payback-for-the-isis-paris-attacks-496184.shtml