Roger A. Grimes, CPA, CISSP, CEH, MCSE, CISA, CISM, CNE, yada, yada, Data-Driven Defense Evangelist for KnowBe4, Inc., is the author of 14 books and over 1300 articles on computer security, specializing in host security and preventing hacker and malware attacks. Roger is a frequent speaker at national computer security conferences and was the weekly security columnist at InfoWorld and CSO magazines between 2005 - 2019. He has worked at some of the world’s largest computer security companies, including, Foundstone, McAfee, and Microsoft. Roger is frequently interviewed and quoted in the media including Newsweek, CNN, NPR, and WSJ. His presentations are fast-paced and filled with useful facts and recommendations.