Digital Forensics Expert Witnesses

Digital forensics 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 digital forensics. The digital forensics expert witness listings on this page are typically from fields/areas of expertise such as: Artificial Intelligence, Computers, Cryptocurrency, Cybersecurity, Defamation, Digital Forensics , Forensic Science, Information Technology, Internet, Investigation, Law Enf & Criminal Justice, Software Engineering, Technology, and Telecommunications.

View Full Profile

Scott Greene

Digital Evidence Expert

Evidence Solutions, Inc.

Tucson, Arizona
Technology, Telecommunications - Call Detail Records, Text Message retrieval, app data, GPS, Triangulation, Digital Forensics, ELDs, Black Box Data, Electronic Medical Records, electronic evidence, Cybersecurity, Document Authentication, data retrieval, meta data, Audio/video/imagery analysis, computers, eDiscovery, data fabrication
For over 42 years, Scott Greene has been helping judges, attorneys, and organizations understand data. He collects, analyzes, and explains complex electronic and digital evidence in legal matters. His extensive and diverse experience allows him to be an expert in many facets of digital technology, including Cell Phone Forensics, Black Boxes / Event Data Recorders (EDRs), Triangulation, Electronic Logging Devices (ELDs), Computers, Electronic Medical Records (EMR) Forensics eDiscovery, Mobile Device Passcode Breaking, and much more. Scott founded Evidence Solutions, Inc., a premier forensics and expert witness firm, and Great Scott Enterprises, Inc., which provided superior computer consulting services. Today, Scott is an Affiliated Professional Member of the American Bar Association and heads the Digital Forensics Division of Evidence Solutions, Inc., working as an Expert Witness and Digital Forensics professional. He has served as an Expert Witness and Special Master in both Feder...
View Full Profile

Joseph Greenfield, PhD

Digital Forensics Expert and USC Professor

Maryman & Associates

Los Angeles, California
Computers, Information Technology - 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...
View Full Profile

Jason T Ghetian, CISSP, GISP, GCFE, GCIH, GISF, DeXT, CART

Cryptocurrency - Former FBI Special Agent (Cyber)

Crypto Experts LLC

Aliso Viejo, California
Cryptocurrency, Cybersecurity - Asset Searches, Fraud Investigations, Pig Butchering, High-Tech Fraud, Digital Forensics, Cyber Investigations, Cryptocurrency Valuation, Hacking, Cybercrime, Call Centers, Cell Phones, Divorce, Family Law, Industry Standards, EB-5
Over my 20-year career as an FBI Special Agent, I specialized in investigating complex cyber-enabled financial crimes, including cryptocurrency investment fraud, exchange compromises, SIM swapping, phishing, and account takeovers. My work extended into advanced cryptocurrency tracing, digital forensics, email and VOIP analysis, and international coordination with foreign law enforcement. I founded the FBI’s Orange County Cyber Task Force, bringing together federal, state, and local investigators to combat sophisticated cybercrime, and the investigative techniques I developed were disseminated across all 52 FBI Field Offices. From 2021 through my retirement in December 2023, I led U.S. government investigations into large-scale cryptocurrency fraud operations, including “pig butchering” schemes—now recognized as one of the most significant global crypto fraud threats. This work resulted in a nomination for the Attorney General’s Award from the Department of Justice’s National Crypto...
View Full Profile

Randy A Winters

Expert - AI, Digital Forensics, Privacy, BIPA, IPR

MatrixHCI, LLC

California
Artificial Intelligence, Software Engineering - AI Expert, ChatGPT, Biometric Privacy, BIPA, Facial Recognition, Speech Recognition, Cybersecurity, Mobile Forensics, Digital Forensics, Source Code Review, ESI Protocols, Patent Infringement, IPR, PTAB, Blockchain, Social Media Forensics, Trade Secret, Digital Evidence, Software Expert, Digital Forensics
Mr. Winters is a nationally recognized expert witness in AI, software, cybersecurity, biometric privacy, cryptocurrency and forensic data extraction. He offers a rare dual-role capability: both as a testifying expert and as a forensic consultant using court-admissible tools to extract and analyze digital evidence from over 31,000 devices. This integrated approach can reduce litigation costs and streamline case strategy, especially in technology-heavy matters. With over 30 years of experience, Mr. Winters has been retained in complex cases involving software architecture, AI, source code analysis, social media forensics, patent infringement, IPR, and Illinois' Biometric Information Privacy Act (BIPA). He holds patents in artificial intelligence and is a pioneer in speech and facial recognition systems, having built early voice-based AI systems adopted by Microsoft, Apple, Boeing, Honeywell and the U.S. Air Force Research Lab. He has successfully testified and been deposed in federal...
View Full Profile

Jonathan E Hochman, PhD

Internet Marketing and Cybersecurity Expert

Hochman Consultants

New London, Connecticut
Internet, Cybersecurity - E-commerce, Ecommerce, SEO, Search Engine Optimization, PPC, Pay Per Click Advertising, Internet Marketing, Web Development, Mobile Apps, Google Analytics, Google Ads, Digital Forensics, Internet Security, Privacy, Wiretapping, Patent, Trademark, Reputation Management, Online Defamation
Jonathan Hochman, PhD serves as consulting and testifying expert for cases related to Internet marketing, e-commerce, website development, digital forensics, search engine optimization (SEO), pay-per-click (PPC) advertising, privacy, securities fraud in the technology industry, and disputes related to technology startups. Since 2007 he has provided expert witness services to plaintiffs and defendants alike for disputes involving trademarks, patents, trade secrets, copyrights, contracts, defamation and online reputation, unfair competition, conspiracy and fraud. Dr. Hochman has testified in 24 trials and 69 depositions. He has served as an expert in hundreds of cases. His clients have been located in the United States, Canada, Australia, the United Kingdom, Israel, Ukraine, and Romania. A Yale University graduate with four degrees in computer science, Dr. Hochman has worked as a sales, marketing and technology consultant for 35 years. After managing several prior businesses, he ...
View Full Profile

Wanderson M Castilho

​Digital Forensics: 6,000+ Cases Solved

Enetsec Digital Forensics

Boca Raton, Florida
Digital Forensics, Investigation - Digital forensics , Mobile Forensics, Cellebrite expert, Deepfake Analysis, Digital investigation , Corporate Espionage, Digital expert, Domestic Violence Evidence, Defamation , Extortion & Ransomware, Digital fraud, Data Exfiltration, Scams, Expert Witness Testimony, Slander expert , Stalking expert, Social media investigator
Wanderson Castilho | Digital Forensics & Cybercrime Expert ​Professional Profile ​With over 25 years of experience and a track record of successfully resolving more than 6,000 cases, I provide high-stakes digital forensic analysis and expert testimony for complex litigation. My expertise lies at the intersection of advanced computational science and behavioral logic, specializing in uncovering digital "smoking guns" that traditional investigations often overlook. I bridge the gap between complex binary data and clear, admissible courtroom narratives. ​Core Competencies & Case Experience ​• Complex Data Recovery: Advanced extraction of deleted, encrypted, or fragmented data from mobile devices, cloud environments, and damaged hardware. ​• Cybercrime & Incident Response: Expert investigation into ransomware, data breaches, and sophisticated network intrusions. ​Behavioral Digital Analysis: A unique methodology combining motion data (accelerometer/gyroscope) with digital footprints...
View Full Profile

Wayne S. Josleyn, EnCE, CCE, CDRS, OFE, MCP

Digital Forensics Expert

G2 Research, Inc.

Boise, Idaho
Information Technology, Computers - Digital Forensics, Cell Phone Forensics, Data Recovery, eDiscovery, Video/Audio Forensics, Computer Forensics, DVR Forensics, Password Recovery, Social Media Forensics, Email Forensics, Spyware, Embezzlement, Trade Secret Theft, Fraud, Cyberstalking, Deleted File Recovery, Document Authentication
I have been a digital forensics expert since 2006 and have testified in Idaho, Oregon, Washington, Texas, California, Colorado, Federal District, Federal Appeals, and Quebec, Ontario Criminal courts. Some areas of investigative and court experience include embezzlement, theft of trade secrets, fraud, misappropriation of funds, tax evasion, network breach, domestic violence, cyberstalking, breach of contract, and divorce. My skills include cell phone forensics (JTAG, chip-off, and geolocation), eDiscovery, data recovery from fire- and water-damaged media, DVR analysis, decryption, and social media investigation. I am an EnCase Certified Examiner (EnCE), a Certified Computer Examiner (CCE), an Oxygen Forensic Expert (OFE), and a Certified Data Recovery Specialist (CDRS) with experience in all industry-recognized commercially available digital forensic tools.
View Full Profile

Randy A Winters

Expert - AI, Digital Forensics, Privacy, BIPA, IPR

MatrixHCI, LLC

Illinois
Artificial Intelligence, Software Engineering - AI Expert, ChatGPT, Biometric Privacy, BIPA, Facial Recognition, Speech Recognition, Cybersecurity, Mobile Forensics, Digital Forensics, Source Code Review, ESI Protocols, Patent Infringement, IPR, PTAB, Blockchain, Social Media Forensics, Trade Secret, Digital Evidence, Software Expert, Digital Forensics
Mr. Winters is a nationally recognized expert witness in AI, software, cybersecurity, biometric privacy, cryptocurrency and forensic data extraction. He offers a rare dual-role capability: both as a testifying expert and as a forensic consultant using court-admissible tools to extract and analyze digital evidence from over 31,000 devices. This integrated approach can reduce litigation costs and streamline case strategy, especially in technology-heavy matters. With over 30 years of experience, Mr. Winters has been retained in complex cases involving software architecture, AI, source code analysis, social media forensics, patent infringement, IPR, and Illinois' Biometric Information Privacy Act (BIPA). He holds patents in artificial intelligence and is a pioneer in speech and facial recognition systems, having built early voice-based AI systems adopted by Microsoft, Apple, Boeing, Honeywell and the U.S. Air Force Research Lab. He has successfully testified and been deposed in federal...
View Full Profile

Stacy R Eldridge, CFCE, ICMDE, GCFE, MCFE, GSEC, GCCC, LPD

iPhone, Android & Computer Forensics. Former FBI.

Silicon Prairie Cyber Services

Lincoln, Nebraska
Digital Forensics, Computers - Computer Forensics, Digital Forensics, Mobile Forensics, Cell Phone, iPhone, Android, Email, Meta Data, Data Recovery, Deleted Files, Video Analysis, Image Analysis, RAM, Data Loss Prevention, Insider Threat, Cybersecurity, Cybercrime, FBI, Forensic Analysis, Computer Investigation
Stacy Eldridge is a former Senior Forensic Examiner with the FBI, and began her security career over 20 years ago in the FBI. Today, she is a leading force behind Silicon Prairie Cyber Services, bringing two decades of digital forensics and cybersecurity expertise to the company. Stacy's services include iPhone forensics, Android Forensics, digital forensics, litigation support, expert witness testimony, cybersecurity consulting and teaching . As a respected educator, she is an adjunct professor teaching digital forensics and cybersecurity classes for OSU and Bellevue University, and she also coaches IACIS. Stacy's passion goes beyond just finding evidence - it's about understanding it and helping others comprehend its significance. With a keen eye for the truth, Stacy's unwavering dedication to her craft makes her a trusted authority in digital forensics and cybersecurity. Whether it's a complete digital forensics examination, a second opinion, or a report review, Stacy offers a n...
View Full Profile

Antonio Rega

Tech Forensics, Cybersecurity, eDiscovery Expert

Hillsdale, New Jersey
Digital Forensics, Cybersecurity - eDiscovery, Remediation, Spoliation, Compromise, Chain of Custody, Standard of Care, Digital Assets, Crypto, IP Theft, Trade Secrets, Misappropriation, Metadata, Exfiltration, BEC, Business Email Compromise, Malware, Digital Forensics, Breach, FINRA, Governance
Antonio Rega has over 22 years of experience providing expert consulting, advisory, and subject matter expertise to global corporations and law firms in digital forensics, information security/privacy, emerging technology, cryptocurrency investigations and discovery. He leads complex investigations, leveraging his expertise in proactive and reactive discovery and analysis, and conducts in-depth examinations and remediation of electronically stored information (ESI) across various repositories, including cloud, local devices, web, and mobile. His advisory services span the entire investigation and litigation lifecycle, including proactive compliance and regulatory assessments, responses to government subpoenas & orders issued by regulatory agencies. When called upon to do so, Antonio has provided expert testimony and reporting within his areas of expertise. He specializes in helping clients navigate the complexities of investigations and litigation. Antonio has presented written and...
View Full Profile

David A. Greetham

35+ Years Experienced Digital Forensics Expert

Level Legal

New York
Digital Forensics, Computers - Digital Forensics, Computer Forensics, Theft of Trade Secrets, Fraud Examiner, Forensic Collections, Neutral Expert eDiscovery, Neutral Expert Digital Forensics, Mobile Device Forensics, 30(b)6 Witness, Neutral Expert Computer Forensics, Information Governance, Employee Theft, Licensed Private Investigator, Data Collections
David has testified as an expert on numerous occasions both nationally and internationally. He has acted as a joint neutral expert on many occasions, specifically in the areas of digital forensics analysis and eDiscovery methodologies. His consulting services are offered throughout the United States and Canada, with occasional international engagements. His accolades include: • Tenured digital forensics expert and innovator - Texas Legal Innovator of the Year 2024. • Testified as a digital forensics and Information Governance expert over 100 times across 7 different countries. • Member of the Association of Certified Fraud Examiners and is a Certified Forensic Litigation Consultant. • Developed and patented the world's first remote forensics collection system. Used in 39 countries. • Provided specific training for the Executive Office of the President at the White House, Harvard University, and New Scotland Yard. David completed his Master of Science in Forensic Computing from...
View Full Profile

Robert Gezelter, Ph.D., DFCP

Systems Programmer/Architect-Computer Scientist

Computer Litigation Services

Flushing, New York
Computers, Internet - cybersecurity, digital forensics, information technology, source code review, computer networks, information security, electronic mail, network protocols, algorithms, computer performance, computer algorithms, computer applications, computer architecture, operating systems, network protocols, electronic evidence, computer data
Dr. Gezelter is a computer scientist/systems programmer-architect with broad expertise and experience in computing and Information Technology. His research interests and nearly five decades of consulting focus on a diverse range of computing, including: - Systems architecture - Operating systems, performance - Networks and protocols, e.g., the Internet, TCP/IP, and electronic mail - CPU/device architecture, device interfaces, and mass storage - Cybersecurity, information security, digital forensics, electronic evidence - Computerized data - Software engineering, algorithms, and applications (classic; web; mobile) The IEEE Computer Society named Dr. Gezelter a Distinguished Contributor in 2021. In 2003, the IEEE Computer Society appointed Dr. Gezelter to a three-year term with its Distinguished Visitor speaking program covering North America. In that capacity, he spoke throughout the United States and Canada. He is a Life Senior Member of the Institute of Electrical and Electro...
View Full Profile

Trish McGarvey

Digital Forensics Expert - Mobile/Computer/Cars...

STARS Consulting, LLC

Ray, Ohio
Digital Forensics, Cybersecurity - Digital Forensics, Mobile & Computer Forensics, Cyber Investigation, Vehicle Forensics, Call Detail Records, Data Recovery, GPS, ELD/ECM Downloads, eDiscovery, Cloud Forensics, IoT Forensics, Chip-Off Forensics, UAS Pilot, Drone Forensics/Services, DFIR, Licenced PI, Cybersecurity, Incident Response, DVR Forensics, Cell Phone Forensics
I am an experienced digital forensics professional specializing in the analysis of mobile devices, vehicle forensics, computers, cyber investigations, and digital artifacts to support legal, investigative, and security matters. My work focuses on extracting, validating, and interpreting complex technical evidence in a clear, defensible manner, with experience in data preservation, forensic imaging, timeline reconstruction, and expert reporting. I am committed to accuracy, integrity, and translating technical findings into actionable insights for legal and investigative teams.
View Full Profile

Sameer Singh Somal, CFA, CFP, CAIA

Defamation, Business Damages & Valuation Expert

Blue Ocean Global Technology

Doylestown, Pennsylvania
Defamation, Information Technology - Financial Damages, Economic Damages, Internet Defamation, Digital Marketing, Business Valuation, Libel Slander, Reputation Management, Search Engine Optimization, Marketing, Public Relations, Cyber Investigations, Digital Forensics, Social Media, IP Damages, YouTube, Instagram, Facebook
Sameer leads a 250+ member team at Blue Ocean Global Technology and Capital Expert Services, specializing in litigation consulting and expert witness engagements. Given the unique nature of each case, Sameer offers a competitive advantage through an integrated team approach, including legal research, data analytics, private investigations, digital forensics, financial analysis, academic insight, and interviews. His team is strategic with client resources, ensuring that reports are developed collaboratively to achieve a blended rate. Co-experts are added strategically on merit. When engaged directly, all reports and testimony reflect Sameer's independent professional opinions Sameer has consulted on 400+ cases and regularly delivers CLE programs for State Bar Associations. He is a former investment and private banker, which affords him a framework for calculating damages on a wide range of case mandates. Over the past decade, Sameer's responsibilities at CFA Institute include publis...
View Full Profile

Timothy R. Primrose, CASA, CFVT

Digital Forensic Analyst & Expert Witness

DJS Associates, Inc.

Abington, Pennsylvania
Forensic Science, Telecommunications - Mobile Forensics, Cell Phones, Data Download, Extraction, Digital Forensics, Digital Evidence, Electronics, Cloud Data, Social Media Data, Wearable Devices, Device Download, eDiscovery, Call Records, Cell Tower Data Analysis, Cellebrite, Smartphone, GPS Device, Apple Watch, Fitbit, Smartwatch
Tim earned his degree in Digital Forensics, with a minor in Information and Technology Management, from Bloomsburg University in Pennsylvania. As Digital Forensic Analyst, Tim handles securing, imaging, and analyzing mobile devices for the municipal, legal, and insurance industries. His services include the review and analysis of digital evidence casefile materials; securing, extracting, and storing of digital data evidence; creating, finalizing, maintaining, and executing formal documentation including chain of custody, consent, and release forms. Tim is a Cellebrite trained and certified Operator, Physical Analyst and Advanced Smartphone Analyst. He is also a Certified Forensic Video Technician, having completed the level 1 and level 2 trainings provided by the Law Enforcement and Emergency Services Video Association International, Inc. (LEVA). Tim works closely with the Automotive Engineering and Collision Reconstruction Departments to research, test, and analyze the connect...
View Full Profile

Avery Thompson

Cell Phone Forensics – Criminal & Civil Cases

Denali Defense Solutions

Knoxville, Tennessee
Digital Forensics, Law Enf & Criminal Justice - Digital forensics, iPhone forensic analysis, Deleted data recovery (mobile), Mobile device forensics, Android forensic analysis, Mobile device metadata, Cell phone extraction analysis, Text message analysis, Location data analysi, Metadata analysis, Call detail record analysis, Smartphone data extraction, App data analysis
Experienced digital forensics consultant and former law enforcement supervisory detective with two decades of investigative expertise, specializing in complex digital evidence analysis, criminal investigations, and strategic case review. Hands-on experience completing forensic extractions on more than 2,000 cellular devices, reviewing call detail records, analyzing Base Transceiver Station Activity Dumps, and examining records obtained from electronic service providers. Additionally, responsible for the technical setup and execution of the first lawful interception conducted under State of Alaska authority. Recognized by the Alaska Court System as an expert in cellular forensics and testified in that capacity at least a twelve times. Also recognized as an expert in the field of drug distribution, testifying in that capacity more than 2 dozen times. Experience as a primary case agent managing major felony investigations, including homicides, sexual assaults, kidnappings, white-c...
View Full Profile

David A. Greetham

35+ Years Experienced Digital Forensics Expert

Level Legal

Dallas & Houston, Texas
Digital Forensics, Computers - Digital Forensics, Computer Forensics, Theft of Trade Secrets, Fraud Examiner, Forensic Collections, Neutral Expert eDiscovery, Neutral Expert Digital Forensics, Mobile Device Forensics, 30(b)6 Witness, Neutral Expert Computer Forensics, Information Governance, Employee Theft, Licensed Private Investigator, Data Collections
David has testified as an expert on numerous occasions both nationally and internationally. He has acted as a joint neutral expert on many occasions, specifically in the areas of digital forensics analysis and eDiscovery methodologies. His consulting services are offered throughout the United States and Canada, with occasional international engagements. His accolades include: • Tenured digital forensics expert and innovator - Texas Legal Innovator of the Year 2024. • Testified as a digital forensics and Information Governance expert over 100 times across 7 different countries. • Member of the Association of Certified Fraud Examiners and is a Certified Forensic Litigation Consultant. • Developed and patented the world's first remote forensics collection system. Used in 39 countries. • Provided specific training for the Executive Office of the President at the White House, Harvard University, and New Scotland Yard. David completed his Master of Science in Forensic Computing from...
View Full Profile

Randy A Winters

Expert - AI, Digital Forensics, Privacy, BIPA, IPR

MatrixHCI, LLC

Saint George, Utah
Artificial Intelligence, Software Engineering - AI Expert, ChatGPT, Biometric Privacy, BIPA, Facial Recognition, Speech Recognition, Cybersecurity, Mobile Forensics, Digital Forensics, Source Code Review, ESI Protocols, Patent Infringement, IPR, PTAB, Blockchain, Social Media Forensics, Trade Secret, Digital Evidence, Software Expert, Digital Forensics
Mr. Winters is a nationally recognized expert witness in AI, software, cybersecurity, biometric privacy, cryptocurrency and forensic data extraction. He offers a rare dual-role capability: both as a testifying expert and as a forensic consultant using court-admissible tools to extract and analyze digital evidence from over 31,000 devices. This integrated approach can reduce litigation costs and streamline case strategy, especially in technology-heavy matters. With over 30 years of experience, Mr. Winters has been retained in complex cases involving software architecture, AI, source code analysis, social media forensics, patent infringement, IPR, and Illinois' Biometric Information Privacy Act (BIPA). He holds patents in artificial intelligence and is a pioneer in speech and facial recognition systems, having built early voice-based AI systems adopted by Microsoft, Apple, Boeing, Honeywell and the U.S. Air Force Research Lab. He has successfully testified and been deposed in federal...
View Full Profile

Frederick Haggerty

Digital Forensics & Cybersecurity Expert

Datigent, LLC

Sterling, Virginia
Cybersecurity, Computers - Computer Forensics, Digital Forensics, Email Investigations, Business Email Compromise (BEC), Compromise Assessment, Cyber Breach, Security Standards, Cybersecurity, Malware Analysis, Memory Forensics, Information Security, Meta Data, Data Recovery, Mobile Forensics, Computer Investigations
Frederick Haggerty is an experienced expert witness who has built a solid reputation in the Information Technology (IT) industry over the last twenty-eight years. As a skilled Cybersecurity professional, he offers a wealth of knowledge and experience in performing digital forensic examinations, email investigations, and malware analysis in response to network intrusions. Mr. Haggerty has been trained and educated extensively in digital forensics, malware and reverse engineering, incident response, data recovery, compliance, risk management, and data privacy. With a background in software development, he has developed mission-critical systems that have granted him the technical knowledge and insight needed to perform thorough examinations of computer information systems, personal computers, servers, and other digital media. His graduate studies at Albany Law School have expanded his breadth of knowledge with an understanding of current laws and practices that impact privacy rights a...