I don't think it was pirated. I'm think it was a special license Ford Aero got due to the work with the USG. I sort of remember KSOS and if I'm correct that was a DoD funded effort for the Orange Book. So it would make absolute sense that Ford Aero might have used the USG connections to convince AT&T to release it to them. As I said, Al was very skittish about anything that might be misinterpreted by the Justice dept. But if DoD was asking for it, Al could show the Jusitce -- "hey -- your people asked for it -- we were not selling it." ᐧ On Sat, May 20, 2023 at 3:03 PM Jon Forrest <nobozo(a)gmail.com> wrote: > > > On 5/20/2023 11:50 AM, Clem Cole wrote: > > Taking this off list. > > > > I've always wondered about that. Thank you bad word choice -- but it > > was not officially released outside the Bell System. Since Ford Aero > > had it, it must have been a very special license. > > It was already there when I arrived so I don't know how it got there. > I doubt it was pirated. > > > Was Ford Aero doing something on a Gvt bid when you were using it? > > Yes. It was creating KSOS which Tom Ferrine has also mentioned on the > TUHS list. This was a "provably" secure version of Unix. > > You might want to ask John Nagle. His email is probably > nagle(a)sitetruth.com, and his GitHub is https://github.com/John-Nagle. > He was there when I arrived and he was a key developer of KSOS. > If he doesn't know the answer then he might be able to refer you to > someone who does. > > Jon > > > >