Pose is as the photographer wanted. Do what the man wants, he has the camera. My print arrived in the post a few weeks later.
Subsequently he did a whole pile of other security geek portraits; where they are I don’t know, but the one of Bob Morris Sr is epic, and spattered around the web in several places; the one of Morris Jr is far from bad, likewise.
Ranum’s stuff is more radical, nowadays.

More discoveries:
Ranum http://bugtraq.ru/library/underground/top/Markus%20Ranum.jpg
Bellovin http://bugtraq.ru/library/underground/top/Steve%20Bellovin.jpg
Linked off http://bugtraq.ru/library/underground/top.html?k=9 which contains at least 1 photo that *I* took, viz: Dan Farmer: http://bugtraq.ru/library/underground/top/Dan%20Farmer.jpg