Recently read: The Cuckoo’s Egg, by Cliff Stoll
The story of how Stoll accidentally discovered and, with considerable doggedness in the face of almost total apathy on the part of all the relevant authorities, ultimately tracked down a German hacker, Markus Hess, who had gained root access to the Lawrence Berkeley Laboratory’s computer system and was trying (with a surprising amount of success) to break into military computer systems. An interesting real-life detective story enhanced by Stoll’s relaxed, self-deprecating narrative style and the lessons for network security which are at least as relevant now as they were then.
(Incidentally, Stoll is the proprietor of Acme Klein Bottle, vendors of “the finest closed, non-orientable, boundary-free manifolds sold anywhere in our three spatial dimensions.”)