Jack Koziol

IRL Name: 
Jack Koziol

Jack Koziol is a Senior Instructor, Security Program Manager and Director of InfoSec Institute, a company that offers a variety of training on security topics such as ethical hacking, penetration testing, information security and reverse engineering. He regularly is called upon to train members of the United States intelligence community, military, and federal law enforcement agencies. Additionally, Jack provides training for Fortune 500 companies, such as Microsoft, HP and Citibank on how to better secure their networks and applications. Jack is the lead author of "The Shellcoder's Handbook: Discovering and Exploiting Security Holes". He is also the author of "Intrusion Detection with Snort". According to a presentation given by Jack Koziol in 2010, ISI has given training to the US Air Force, National Security Agency (NSA), the US Army, GCHQ, Symantec, KPMG, Bank of America, Trustwave, JPMorgan, McAfee and more.


Jack has appeared in USA Today, CNN, MSNBC, First Business and other media outlets for his opinions on information security.

He was accused for plagiarizing contents for presentation on APT, Heap Overflows, and Applied Penetration Testing as what the Attrition.org has written about him but later on it was resolved (Check the references below).