Cyber Investigations Expert Witnesses
Cyber investigations expert witnesses and consultants listed here may be able to form expert opinions, draft expert witness reports, provide expert witness testimony at deposition and/or trial as or serve as consulting (non-testifying) experts on cyber investigations. The cyber investigations expert witness listings on this page are typically from fields/areas of expertise such as: Computers, Cryptocurrency, Cybersecurity, and Information Technology.
Joseph Greenfield, PhD
Digital Forensics Expert and USC Professor
Maryman & Associates
Los Angeles, California
Computers, Information Technology
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Digital Forensics, Computer Forensics, Electronic Evidence, Electronic Discovery, eDiscovery, Email Analysis, Mobile, Computers, Cybersecurity, Cyber Breach Investigations, Cyber Investigations, Incident Response, DFIR
Dr. Joseph Greenfield is the Vice President and Chief Forensic Examiner at Maryman & Associates and an award-winning educator. 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. He has worked over 1000 cases and analyzed over 2000 pieces of digital evidence. His is known for deep forensic analysis while being able to explain technical details to non-technical decision-makers. He has provided expert witness testimony in state, federal, and international legal matters.
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 the undergraduate programs in both cybersecurity and digital forensics. In 2014, the Ponemon Institute ranked USC as 6th in the nation for “Best Schools for Cybersecurity” and the highest ranked on the West Coas...
Jason T Ghetian, CISSP, GISP, GCFE, GCIH, GISF, DeXT, CART
Cryptocurrency - Former FBI Special Agent (Cyber)
Cyber Asset Recovery Experts Inc
Wilmington, Delaware
Cryptocurrency, Cybersecurity
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Asset Searches, Fraud Investigations, Pig Butchering, High-Tech Fraud, Digital Forensics, Cyber Investigations, Cryptocurrency Valuation, Hacking
Over his 20-year career with the FBI, Jason excelled in investigating cyber-related crimes, including hacking, online stalking, SIM card swapping, business email compromises, phishing, tech support scams, romance scams, and cryptocurrency investment frauds. His expertise covered cryptocurrency tracing, digital device forensics, email forensics, Voice Over Internet Protocol (VOIP) analysis, social media investigations, domain attribution, money laundering, and international collaboration with foreign governments. Jason founded the FBI’s Orange County Cyber Task Force, uniting cyber investigators from federal, state, and local law enforcement agencies. His investigative techniques have been disseminated across all 52 FBI Field Offices and other federal agencies.
From 2021 until his retirement in December 2023, Jason led U.S. government investigations into the Pig Butchering Scam, the largest cryptocurrency scam globally, earning him a nomination for the Attorney General’s award from ...
