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Atlanta, Georgia

Service Experience
  • Advisory

Johnny Lee




Executive summary

Johnny Lee is a Principal in the Forensic Advisory practice and the National Practice Leader of the Forensic Technology practice. He also serves as the technology lead for the firm’s digital assets practice. A forensic investigator, management consultant, and former attorney, he specializes in data analytics, digital forensics, and electronic discovery in support of investigations, litigation, and complex regulatory issues. He also provides advisory services to and expert testimony for organizations working to address complex Cybersecurity, Blockchain, Cryptocurrency, and Data Privacy issues.

Johnny’s broad range of experience includes nearly thirty years of software development and systems analysis, including over twenty years within the legal industry. He has delivered solutions (in both public and private sectors) to Law Firms, General Counsel, Boards of Directors, Audit Committees, and Chief Financial / Information / Operations executives, on the effective identification and mitigation of business, compliance, and litigation risk within the enterprise. His particular expertise involves advising attorneys, executives, and Boards on the proper management of vast and complex stores of information to address operational, financial, legal, and regulatory risks facing organizations today—from policies and procedures to training and systems implementations.

He has led hundreds of forensic investigations over the past fifteen years, including numerous matters involving significant data volumes and complex forensic analytics tools and techniques. These matters include forensic analytic support for a wide variety of digital asset and cryptocurrency projects, complex monitoring engagements, and investigations involving federal law enforcement and regulators.

At Grant Thornton, Johnny has led project teams across a variety of industries, including financial services, healthcare, retail, insurance, advanced technology, communications, private equity / venture capital, hospitality, manufacturing, construction, transportation, and legal.

He has extensive experience with Internal Audit and Compliance-related engagements, and he has deep experience with project management methodologies, serving as a project lead within the global management consulting environment for over two decades. Additionally, he has designed and delivered training programs to boards, executives, attorneys, Human Resources professionals, accountants, and Information Technology personnel.

Prior to joining Grant Thornton, Johnny served in various executive roles for global consulting firms, and he also served in the District Attorney’s Office in Atlanta, GA. He is a frequent speaker, panelist, and author on various topics including Digital Assets, Blockchain Technology, Cybersecurity, Information Privacy, Data Analytics, Computer Forensics, and the effective use (and risk management) of Information Technology.


Professional qualifications and memberships

  • State Bar of Georgia
  • American Bar Association

Community involvement

  • State Bar of Georgia – eDiscovery and Use of Technology Section (past co-Chair)
  • State Bar of Georgia – Programming Committee (past), Privacy & Technology Law Section Committee Member & Contributing Author
  • AICPA Forensic and Litigation Services Advisory Board
  • Georgia State University’s Center for Evidence-Based CyberSecurity (past)
  • American Society for Digital Forensics & Electronic Discovery (past Vice President)

Presentations and publications

  • Published author, guest university lecturer, and frequent speaker/panelist at events involving CyberSecurity, Data Privacy, Blockchain & Cryptocurrency, Electronic Discovery, Information Governance, Digital Forensics, Defensible Deletion, and the effective use and risk management of Information Technology.


  • J.D., Georgia State University College of Law
  • B.A., Emory University

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