History is history, and I don't see how the fact that this article is nearly 20 years old changes anything. The very fact that Unix began as a multi-user, netw

History is history, and I don't see how the fact that this article is nearly 20 years old changes anything. The very fact that Unix began as a multi-user, networked system, illustrates the collaborative nature of Unix, where other systems took an ad hoc approach to security by virtue of their origins as single user, non networked, systems, Unix started with these concepts as the foundation of the system - resulting in security being a primary concern rather than an afterthought. This approach to security had the effect of encouraging collaborative development, which, I believe, is the basis of the article.