This book constitutes the thoroughly refereed post-proceedings of the 7th International Workshop on Critical Information Infrastructures Security, CRITIS 2012, held in Lillehammer, Norway, in September 2012. The 23 revised full papers were thoroughly reviewed and selected from 67 submissions. The papers are structured in the following topical sections: intrusion management; smart metering and grid, analysis and modeling; SCADA; cyber issues; CI analysis; CIP sectors; CI assessment; and threat modeling.

This book constitutes revised selected papers from the 6th International Workshop on Critical Information Infrastructure Security, CRITIS 2011, held in Lucerne, Switzerland, in September 2011. The 16 full papers and 6 short papers presented in this volume were carefully reviewed and selected from 38 submissions. They deal with all areas of critical infrastructure protection research.

This volume contains the post-proceedings of the Second International Workshop on Critical Information Infrastructure Security (CRITIS 2007), that was held during October 3-5, 2007 in Benalmadena-Costa (Malaga), Spain, and was hosted by the University of Malaga, Computer Science Department. In response to the 2007 call for papers, 75 papers were submitted. Each paper was reviewed by three members of the Program Committee, on the basis of significance, novelty, technical quality and critical infrastructures relevance of the work reported therein. At the end of the reviewing process, only 29 papers were selected for pres- tation. Revisions were not checked and the authors bear full responsibility for the content of their papers. CRITIS 2007 was very fortunate to have four exceptional invited speakers: Adrian Gheorghe (Old Dominion University, USA), Paulo Verissimo (Universidade de L- boa, Portugal), Donald Dudenhoeffer (Idaho National Labs, USA), and Jacques Bus (European Commission, INFSO Unit "Security"). The four provided a high added value to the quality of the conference with very significant talks on different and int- esting aspects of Critical Information Infrastructures. In 2007, CRITIS demonstrated its outstanding quality in this research area by - cluding ITCIP, which definitively reinforced the workshop. Additionally, the solid involvement of the IEEE community on CIP was a key factor for the success of the event. Moreover, CRITIS received sponsorship from Telecom Italia, JRC of the European Commission, IRRIIS, IFIP, and IABG, to whom we are greatly indebted."

OnbehalfoftheProgramCommittee, itisourpleasuretopresenttoyouthep- ceedings of the 4th GI International Conference on Detection of Intrusions and Malware, and Vulnerability Assessment (DIMVA). Each year DIMVA brings - gether internationalexperts from academia, industry andgovernmentto present and discuss novel security research. DIMVA is organized by the special interest group Security-Intrusion Detection and Response of the German Informatics Society (GI). The DIMVA 2007 Program Committee received 57 submissions from 20 d- ferentcountries. Allsubmissions werecarefullyreviewedbyProgramCommittee members and external experts according to the criteria of scienti?c novelty, - portance to the ?eld and technical quality. The ?nal selection took place at a Program Committee meeting held on March 31, 2007, at Universit a Campus Bio-Medico di Roma, Italy. Twelve full papers and two extended abstracts were selectedforpresentationatthe conferenceandpublicationin theconferencep- ceedings. The conference took place during July 12-13, 2007, at the University of Applied Sciences and Arts Lucerne (HTA Lucerne) in Switzerland. The p- gram featured both theoretical and practical research results grouped into ?ve sessions. ThekeynotespeechwasgivenbyVern Paxson, InternationalComputer Science Institute and Lawrence Berkeley National Laboratory. Another invited talk was presented by Marcelo Masera, InstitutefortheProtection and Security of the Citizen. Peter Trachsel, Deputy Head of the Federal Strategic Unit for IT in Switzerland, gave a speech during the conference dinner. The conference programfurther included a rump sessionorganizedby Sven Dietrich of Carnegie Mellon University; and it was complemented by the third instance of the Eu- pean capture-the-?ag contest CIPHER, organized by Lexi Pimenidis of RWTH Aache