CEH v11 Certified Ethical Hacker Study Guide + Practice Tests SetRIC MESSIER, CEH, GCIH, GSEC, CISSP, CCSP is a consultant, educator, and author of many books on information security and digital forensics. With decades of experience in information technology and information security, Ric has held the varied roles of programmer, system administrator, network engineer, security engineering manager, VoIP engineer, consultant, and professor.