HarperCollins Speakers Bureau

Christopher Hadnagy

Professional Social Engineer, Communications Expert, Master Level Body Language and Facial Expression Reader


  • Social Engineering
  • Security
  • Communications
  • Psychology of Human Hacking
  • Protecting Children on the Internet


More Media

Christopher Hadnagy is a global security expert and master hacker. He is the founder and CEO of Social-Engineer, LLC, the creator of the popular Social Engineer Podcast, website, and newsletter, and designed “Advanced Practical Social Engineering,” the first hands-on social engineering training course and certification for law enforcement, military, and private sector professionals. He is the bestselling author of four technical books for security professionals: Social Engineering: The Art of Human Hacking; Unmasking the Social Engineer: The Human Element of Security; Phishing Dark Waters: The Offensive and Defensive Sides of Malicious Emails; and Social Engineering: The Science of Human Hacking. His most recent book, Human Hacking: Win Friends, Influence People, and Leave Them Better Off for Having Met You (Harper Business) published in January 2021.

A master hacker and a pioneer in the field of social engineering, Hadnagy specializes in understanding how malicious attackers exploit principles of human communication to access information and resources through manipulation and deceit. In Human Hacking Hadnagy shows you how to use social engineering as a force for good, providing the tools that will help you regain your confidence and control, establish rapport with strangers, use body language and verbal cues to your advantage, influence other’s decisions, and achieve your goals.

Ultimately, you’ll become far more self-aware about how you present yourself—and be able to use that information to improve your life.

A highly sought-after speaker, Hadnagy has delivered numerous presentations and shared his expertise with audiences at financial institutions, retailers, corporations, universities, and security organizations.

Hadnagy is the creator of the Human Hacking Conference, an annual forum focused on training people how to hack in order to achieve their goals. He is the founder, executive director, and a board member of the Innocent Lives Foundation, a nonprofit that fights the sexual abuse of children. Hadnagy currently resides in Florida.

Praise for Human Hacking:

“Oh, to have had an advance copy of Human Hacking in 1993. During Clutch’s salad days, we encountered no shortage of crooked club owners, duplicitous record label executives, and more than one creative accountant. The lessons Chris shares in this book would have been invaluable then, particularly chapter 6, ‘Stop Deviousness In Its Tracks.’ Human Hacking is not about deception. It’s about honesty. And that simple practice of honesty can be applied to any situation, anywhere, by anyone - for the betterment of all. “
--Neil Fallon, Lead Singer of CLUTCH

“We live in a world of machines, but we forget that those machines are led by humans — and humans can easily be hacked. This is an excellent book about how that happens — it is an essential tool for living in the world today.”
--Henry Elkus, Founder and CEO, Helena

Human Hacking reveals what most of the security community has missed: Protection against security breaches is most likely to come from an understanding of human psychology rather than technological systems. Anyone interested in issues of data security and personal privacy should not miss this book.”
-- Dr. Robert Cialdini, author of Influence and Pre-Suasion

“An indispensable book from a master practitioner of understanding human behavior. The book is a super-practical resource that sets the gold standard for Chris’ lifelong passion, Human Hacking.”
--Robin Dreeke, founder and CEO of People Formula and bestselling author of Sizing People Up

"This is a must read book if you want to learn to be your best self. I value open and honest communications and that is what Human Hacking is all about. Learning how to use decades of research into how professional human hackers crafted their skills and applying it to the everyday average person.”
-- AJ Cook, Actress, Criminal Minds

Human Hacking is the perfect manual for learning the skills needed so you can get along with people better, and make your world the best it can be.”
-- Mark Bowden, National Correspondent, The Atlantic

“This is, hands down, the must-read book of the year!”
--Joe Navarro, author of the international bestseller What Every BODY Is Saying