HARPER, ALLEN GRAY HAT HACKING : THE ETHICAL HACKERS HANDBOOK. - 3RD ED. - CHENNAI MCGRAW HILL EDUCATION (INDIA) PRIVATE LIMITED 2019 - 693 ENGLISH ISBN: 978-0-07-107731-6 Subjects--Topical Terms: GRAY HAT HACKING THE ETHICAL HACKERS Dewey Class. No.: 005.08 HAR