As each year I go expose to meeting where I live (bolivia), and other meeting (conasol, flisol, pgday, ... all related with opensource software, hacking, technologie).
Some time is on security, some time on IT, server, cluster, ... my talk go from compression, crypto as protocol, file format, OS, FS... this year is focused on CatchChallenger, most of the content is on the wiki.
I'm a sponsor of this event too.
Cheers,
Ultracopier
Supercopier
CatchChallenger