Stabilization Safety and Security of Distributed Systems : 13th International Symposium SSS 2011 Grenoble France October 10 12 2011. Proceedings This book constitutes the proceedings of the 13th International Symposium on Stabilization Safety and Security of Distributed Systems SSS 2011 held in Grenoble France in October 2011. The 29 papers presented were carefully reviewed and selected from 79 submissions. They cover the following areas: ad hoc sensor and peer to peer networks; safety and verification; security; self organizing and autonomic systems; and self stabilization.