00642nam a22001577a 4500 20260710113617.0 9780525561989 (pbk) 363.325 CLA Clarke, Richard A Robert K. Knake The fifth domain : defending our country, our companies, and ourselves in the age of cyber threats New York Penguin Press 2020 344 p. : ill. ; 22 cm. Includes index. Computer networks Computer security Corporations security measures National security Information technology Security measures Cyberwarfare Cybersecurity FC GGC BK 0 0 0 0 PTR PTR 2025-10-31 Purchased: Progressive International Agencies 4320.00 1 363.325 CLA 109557 2025-12-05 00:00:00 2025-11-25 1 16230046 2025-10-31 BK 58609 58609