A large fraction of the population in the world now spends a great deal of time in cyberspace. Cyberspace has become a critical infrastructure that is embedded in almost all other critical infrastructures and enables every movement of human society. It is thus very much in the public interest to have a safe and secure cyberspace. In the past several years, there has been large number of attacks in cyberspace, such as attacks on the Internet, attacks on embedded/real-time computing and control systems, and attacks on dedicated computing facilities. Many research efforts have been made to achieve cyberspace safety and security, such as blocking and limiting the impact of compromise, enabling accountability, promoting deployment of defense systems, and deterring potential attackers and penalizing attackers. Click on the image and go back to homepage. The CSS-2015 symposium is the 7th International Symposium on Cyberspace Safety and Security. It provides a leading edge forum to foster interaction between researchers and developers with the cyberspace safety and security communities, and to give attendees an opportunity to network with experts in this area. It focusses on Cyberspace Safety and Security, such as authentication, access control, availability, integrity, privacy, confidentiality, dependability and sustainability issues of cyberspace. The CSS-2015 symposium is the next event in a series of highly successful international conferences on cyberspace safety and security previously held as CSS-2014 (Paris, France, 2014), CSS-2013 (Zhangjiajie, China, 2013), CSS-2012 (Melbourne, Australia, 2012), CSS-2012 (Milan, Italy, 2011), CSS-2009 (Chengdu, China, 2009), and CSS-2008 (Sydney, Australia, 2008).