Cyber Security Expert Witness Joseph Greenfield

Dr. Joseph Greenfield is the Vice President and Chief Forensic Examiner with Maryman & Associates. He is a renowned Computer Forensics Expert with over 15 years of investigative experience, including cyber breach investigations, employee misconduct, and email recovery and analysis. 

Dr. Greenfield is also an Associate Professor of Information Technology Practice at the Viterbi School of Engineering at the University of Southern California, where he authored both the undergraduate cybersecurity and digital forensics programs. In 2014, the Ponemon Institute ranked USC as 6th in the nation for “Best Schools for Cybersecurity” and the highest ranked on the West Coast. In 2019, he co-created an interdisciplinary bachelor's degree in Intelligence and Cyber Operations, now a part of the USC Political Science and International Relations Department in the Dornsife College of Letters, Arts and Sciences.

Litigation Support - Dr. Greenfield has over 15 years of experience in digital forensics. He has testified for both plaintiff and defense in civil matters in state, federal, and international courts. He has examined over 2,000 pieces of digital evidence and worked on over 1,000 cases. He has also provided expert testimony in criminal matters.

Areas of Expertise:

 Dr. Greenfield completed his Ph. D. in Computer Science at the University of Rhode Island, where his research focused on parallel processing of all live files while creating a forensic bitstream image.