Kevin Mitnick was born on August 6, 1963. He was at one time the most wanted criminal computer hacker in the world. Nowadays he is a rich (and deservedly so) computer security consultant. His latest book (2008) is titled:
"No Tech Hacking: A Guide to Social Engineering, Dumpster Diving, and Shoulder Surfing."
Mitnick co-authored this book, and I am not sure if he or his co-author has a cat, but one of them definitely does. This book mentions shredding old mail to use for cat litter.