The article mentions one of the things I remember most about The Cuckoo’s Egg. It was Stoll's use of simple tech, a printer, to securely log the activities of the intruder.

No worrying about tampered logs, or any of that.

Of course, he had physical security at Lawrence Berkeley Lab.

I wouldn't want to play that game if I was in an insecure location. It's just not fun.

Still, good book. Formative in my youth.