Dag-Erling Smørgrav is a software developer who specializes in networking, security (especially IAM), and the lower levels of the stack. He has been a FreeBSD developer since 1998 and served as FreeBSD Security Officer from 2013 to 2015. He is also the author of OpenPAM, the PAM implementation used in FreeBSD, NetBSD and Mac OS X. His preferred environment is C and Perl on BSD or Linux, but he has been known to dabble in other languages and platforms, particularly embedded ones. He is currently employed as a computer security specialist at the University of Oslo and is a member of the UiO CERT. DES is also an avid tabletop and video gamer as well as an F&SF fan. He lives in Oslo, Norway and has recently become a cyborg.