Peter af Geijerstam is a software developer who specializes in computer security. He has been doing software development for over 15 years and has experience from small businesses, large-scale telecom and computer security for government agencies. Peter believes in solving problems, not using any particular technology. He currently works as a software consultant for factor10 where he works to bring security-awareness to software developers. Peter is on twitter as @p4fg and blogs on http://www.shellcode.se