Forensic cybersecurity analyst working at a multi-monitor workstation in a dark operations center

When Digital Evidence
Demands Certainty

Global Digital Forensics is one of America's most experienced cyberforensics firms. We preserve, analyze, and present digital evidence that holds up in court, serving law firms, corporations, government agencies, and individuals across the globe.

24/7 Hotline: 1-800-868-8189
30+ Years in Operation
500+ Expert Witness Cases
40+ Global Offices
24/7 Emergency Response
Our Practice Areas

Full-Spectrum Forensic & Security Services

From uncovering hidden digital evidence to defending against sophisticated cyber threats, GDF provides the full spectrum of forensic and security services your case requires.

Computer Forensics

Court-admissible recovery and analysis of digital evidence from computers, mobile devices, cloud platforms, and enterprise networks.

  • Hard disk & storage media analysis
  • Deleted file & email recovery
  • Smartphone & mobile device forensics
  • Internet history & metadata analysis
  • Chip-off & JTAG analysis
Explore Computer Forensics

eDiscovery Services

Full-lifecycle ESI collection, processing, and production for litigation. Trusted by the SEC, NASA, the City of New York, and hundreds of law firms.

  • ESI collection planning & execution
  • Early case assessment
  • Remote & on-site collections
  • Data conversion & warehousing
  • Expert affidavits & court testimony
Explore eDiscovery

Cybersecurity & Penetration Testing

Proactive security assessment, threat analysis, and rapid breach response. We protect your organization before and after an attack.

  • Network penetration testing
  • Breach response & remediation
  • Regulation compliance assessments
  • Remote worker security
  • Threat assessment & monitoring
Explore Cybersecurity
Why Global Digital Forensics

30 Years of Expertise That
Stands Up in Court

GDF was founded when the internet was still young. That depth of experience, in the lab, in the field, and on the witness stand, is what sets us apart from firms that learned forensics from a textbook.

DOJ-Compliant Examinations

All examinations follow Department of Justice recommended standards with strict chain-of-custody protocols, ensuring evidence admissibility in federal and state courts.

24/7 Emergency Response Teams

Strategically located responders can be on-site anywhere in the continental U.S. within hours. Remote response capabilities expand our reach globally.

Global Reach, Local Expertise

Offices across the United States, Europe, Asia, and South America. We've handled matters in every federal district (except the 1st) and courts on six continents.

Fortune 100 Trusted

GDF is on retainer as the leading forensic responder for numerous private and public companies, including Fortune 100 corporations across every major industry sector.

Expert forensic witness presenting digital evidence analysis in a modern courtroom
Trusted By

Clients Across Every Sector

From the SEC to litigation support professionals, law firms to hospitals, GDF has the experience and discretion your matter demands.

U.S. Securities & Exchange Commission
NASA
City of New York
American Civil Liberties Union
American Stock Exchange
NY State Dept. of Corrections
Senior Aerospace
Stony Brook University Hospital
AES Energy
PSE&G
Fortune 100 Corporations
MedStar Health
How We Work

A Proven Forensic Process

Every engagement follows rigorous, court-tested methodology that preserves evidence integrity from first contact to final verdict.

Engagement & Scope

We assess your matter, identify the right team, and define scope of work within hours, not days.

Evidence Preservation

Forensically sound acquisition with documented chain of custody that meets DOJ and court standards.

Forensic Analysis

Deep technical examination using industry-leading tools to uncover all relevant digital artifacts.

Report & Testimony

Clear, court-ready written reports and expert witness testimony that withstands rigorous cross-examination.

Client Testimonials

What Our Clients Say

"GDF's expert witness testimony was critical to our IP theft case. Their ability to explain complex technical concepts clearly to the jury made the difference between winning and losing. Absolutely first-rate."

Senior Partner Regional Law Firm, New York

"When we discovered a breach on a Friday night, GDF had a response team on-site by Saturday morning. They contained the incident, preserved the evidence, and had us back in operation by Monday. Remarkable."

Chief Information Security Officer Healthcare System, Mid-Atlantic

"The eDiscovery work GDF performed for our SEC response was flawless. They managed a massive data collection under extreme time pressure and delivered perfectly organized, fully defensible production sets."

General Counsel Public Financial Services Firm
Our Reach

Global Offices & Response Teams

With offices and response teams on four continents, GDF can be on-site virtually anywhere in the United States within hours.

Northeast U.S.

  • New York, NY(212) 561-5860
  • Oceanside, NY(516) 806-6091
  • Boston, MA(617) 848-5962
  • Philadelphia, PA(800) 868-8189
  • Princeton, NJ(800) 868-8189
  • Washington, DC(202) 360-4356

South & Central U.S.

  • Clearwater, FL(800) 868-8189
  • Miami, FL(786) 219-1210
  • Tampa, FL(813) 305-7969
  • Orlando, FL(800) 868-8189
  • Atlanta, GA(800) 868-8189
  • Chicago, IL(800) 868-8189

West U.S. & Europe

  • Los Angeles, CA(310) 694-3094
  • San Francisco, CA(415) 413-0192
  • Phoenix, AZ(800) 868-8189
  • Denver, CO(800) 868-8189
  • London, UK
  • Paris, France

Asia & Americas

  • Tokyo, Japan
  • Hong Kong
  • Singapore
  • São Paulo, Brazil
  • Buenos Aires
  • Mexico City

Ready to Discuss Your Case?

From cyber breaches and active litigation to proactive security assessments, our team is ready to help: 24 hours a day, 7 days a week.