Peter H GregoryPeter H. Gregory, CISM, CISA, CISSP, CIPM, CRISC, CCISO, CCSK, QSA, is a 30-year career technologist and an executive security consultant at Optiv Security. He is the author of more than 40 books on informationsecurity and technology, includin, including CISA Certified Information Systems Auditor All-in-One Exam Guide, Third Edition. Read More Read Less