Chinese hackers have taken control of NASA satellites for 11 minutes in 2008. The satellites are a vital component in the process of information management, a stream of bits passes on our heads, no matter whether its a talk show or to military communications, they are there and hackers and militar government know it. Current satellite systems are vulnerable to several type of attacks but the problem is known and from several parts is working to improve its security. China is one of the top space powers in the world today.”]
Source: http://securityaffairs.co/wordpress/236/cyber-crime/hacking-satellites.html