Mike Chapple, Ph.D., Security+, CISSP, CySA+, PenTest+, CISM is one of the world's leading experts on cybersecurity certifications. He's the author of over 50 books covering a variety of cybersecurity exams and has created over 150 video courses on LinkedIn Learning that prepare technology professionals for popular security certifications. Mike also runs the CertMike.com website which offers free study groups for major certifications.