Glen D. Singh is a Cybersecurity and Networking Instructor, InfoSec Author and Consultant. His areas of expertise are penetration testing, digital forensics, network security, and enterprise networking. He has many certifications including CEH, CHFI, 3xCCNA (cyber ops, security, and routing and switching). He loves teaching and mentoring others, and sharing his wealth of knowledge and experience as an author. He has written books on Kali Linux, Kali NetHunter and CCNA Security. Glen has trained many professionals in various sectors ranging from ISPs to government agencies in the field of cybersecurity. As an aspiring game-changer, Glen is passionate about increasing cyber security awareness in his homeland, Trinidad and Tobago.