The Proceedings of the 11th Brazilian Symposium on Information and Computational Systems Security (SBSeg 2011) bring the papers selected and presented in the edition of the event held in Brasília/DF, from November 06-11, 2011. In this issue, the proceedings include 19 full papers and 1 short paper. These papers were selected through a peer-review.

The short courses presented at the event were compiled and published in an ebook. To access it, visit the SBC OpenLib book catalog.