Dr. Tierney works in the field of information and network security. Over the last 15 years he spent most of his time working in very large private sector organizations as a red teamer, penetration tester, or application security specialist.
In his spare time, Dr. Tierney performs research in new technology and vulnerablitites associated. Along with his professonal career he has a long academic history which includes both university and certification programs. Outside of technology research, his interests include attachment theory in professional environments.