This book constitutes the refereed proceedings of the 14th International Symposium on Stabilization, Safety, and Security of Distributed Systems, SSS 2012, held in Toronto, Canada, in October 2012. The 21 full papers and 10 brief announcements presented in this volume were carefully reviewed and selected from 75 submissions. The conference provides a wide spectrum of topics, covered in the following tracks, self-stabilization, ad-hoc and sensor networks, fault-tolerance and dependable systems, safety and security, cloud computing, formal methods, social networks, peer-to-peer, self-organizing and autonomic systems.