RSDA 2013 is co-located with the 43th IEEE/IFIP International Conference on Dependable Systems and Networks (DSN 2013) being held in June 24-27, 2013, Budapest, Hungary. RSDA will feature exciting talks, panels and presentations to concentrate ideas and contributions from academic and industrial organizations addressing reliability and security aspects of computer systems through data analysis. The workshop will establish a forum to stimulate scientific research and discuss techniques, procedures and tools that are currently adopted to manage and analyze reliability and security data. Relevant application areas include, but are not limited to: distributed, parallel, clustered and grid systems; cloud computing infrastructures; web-based information; secure and intrusion tolerant systems.