Christopher James Hadnagy is an American author and information technology security consultant. Career Hadnagy is the founder and CEO of Social-Engineer LLC, a company that provides education and training related to social engineering. He is a founder of Social-Engineer.Org, an IT security education website, and Innocent Lives Foundation, an organization that aims to identify people involved in child trafficking.Hadnagy is also an adjunct professor at the University of Arizona’s Center of Academic Excellence in Cyber Operations. DEF CON In February 2022, Hadnagy was banned permanently from hacker conference DEF CON, where he operated a colocated event ("village"), for unspecified code of conduct violations, as announced in the organization's transparency report: "We received multiple CoC violation reports about a DEF CON Village leader, Chris Hadnagy of the SE Village. After conversations with the reporting parties and Chris, we are confident the severity of the transgressions merits a ban from DEF CON."In Hadnagy's response on his blog, he said that he disagrees with the ban, that had not been informed of the details of any allegations by DEF CON representatives, and that a person affiliated with DEF CON told him they were not related to sexual misconduct. BSides Cleveland In fall of 2021, BSides Cleveland included Hadnagy on the agenda of speakers for its June 2022 event. Leading up to the event, the organizer labeled Hadnagy's speaking slot as "special guest" instead of listing his name, so attendees and other speakers did not know he would be speaking. His talk was about cancel culture, which he had also presented at a different BSides event last year. After Hadnagy gave his presentation, several other speakers pulled out of the event, and attendees and other people in the information security community criticized the event for hiding his name. Some said that they would not have attended the event if they had known he would be a speaker. Books In 2018, Ben Rothke and Bill Varhol positively reviewed Social Engineering: The Science of Human Hacking. In 2016, Rothke said "Unmasking the Social Engineer: The Human Element of Security helps a reader to understand that "Ensuring that social engineering is part of the overall information security program is no longer an option". Maria Patricia Prandini from Isaca Journal Book Reviews said the book Phishing Dark Waters: The Offensive and Defensive Sides of Malicious E-mails had detailed analysis of cyber security techniques and was available to a wide readership, and not only professionals in IT industry. Publications Human Hacking: Win Friends, Influence People, and Leave Them Better Off for Having Met You, Christopher Hadnagy, Seth Schulman, 2021, Harper Business (ISBN 978-0-063-00178-7) Social Engineering: The Science of Human Hacking, Christopher Hadnagy, 2018, John Wiley & Sons Inc. (ISBN 978-1-119-43338-5) Phishing Dark Waters: The Offensive and Defensive Sides of Malicious, by Christopher Hadnagy, Michele Fincher and Robin Dreeke, 2015, John Wiley & Sons Inc. (ISBN 978-1-118-95847-6) Unmasking the Social Engineer: The Human Element of Security, Christopher Hadnagy, 2014, John Wiley & Sons, Inc. (ISBN 978-1-118-60857-9) Social Engineering: The Art of Human Hacking, Christopher Hadnagy, 2010, Wiley Publishing, Inc. (ISBN 978-0-470-63953-5)References External links Innocent Lives Foundation. Discover the Christopher Hadnagy popular books. Find the top 100 most popular Christopher Hadnagy books.