Jeff is a respected Information Security advocate, advisor, hacker, evangelist, mentor, teacher, international keynoter, speaker, co-host on Paul's Security Weekly, Tribe of Hackers (TOH) contributor, including Red Team, Security Leaders, and Blue Team editions, and a member of the Cabal of the Curmudgeons. Jeff currently serves as a PCI QSA and Trusted Advisor for Online Business Systems, also a Grant Advisory Board Member for the Gula Tech Foundation, Advisory Board Member for the Technology Advancement Center (TAC), and is the Director of Diversity, Equity, and Inclusion for Hak4Kidz NFP. Over 40 years of experience working in all aspects of computer, network, and information security, including cryptography, risk management, vulnerability analysis, compliance assessment, forensic analysis and penetration testing. Certified National Security Agency Cryptanalyst. Designed and fielded the first software-based cryptosystem ever produced by NSA. Inventor of the "whiz" wheel, a cryptologic cipher wheel used by US Special Forces for over a decade currently on display at the National Cryptologic Museum. Honorary lifetime member of the Special Forces Association. Pioneering member of the first penetration testing "red team" at NSA. For the past twenty-eight years has been a pen tester, security architect, consultant, QSA, and PCI SME.