Lasting 2 days, and preceded by a training.[15] CanSecWest, in Vancouver is held at the end of March and hosts the Pwn2Own hacking contest.[16][17][18] CSS - International Conference on Cryptography and Security System[19] in Poland. DeepSec, in Vienna covers many security aspects of computing and electronic communications as well as security management and social aspects. DeepSec is visited by a broad international audience, academics, researchers, vendors, finance, public administration etc.