''The Cuckoo's Egg: Tracking a Spy Through the Maze of Computer Espionage ''
... written by CliffordStoll, the man who caught the crooks.


http://images.amazon.com/images/P/0743411463.01._PE_PI_SCMZZZZZZZ_.jpg 
[ISBN: 0743411463] ... is a book about a seventy-five cent discrepancy that led to the conviction of two hackers in Germany who were working for the KGB. According to various sites, five were charged (with espionage), and four convicted, one having died mysteriously.

You can read a short excerpt online: http://www.amazon.com/exec/obidos/tg/detail/-/0743411463/ref=lib_dp_TFCV/104-0991622-5226357?v=glance&s=books&vi=reader#reader-link
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CategoryBook