Management Team

Mark Lanterman has over 11 years of law enforcement experience as a police investigator, culminating as a member of the U.S. Secret Service Electronic Crimes Task Force. Lanterman has successfully led hundreds of forensic investigations with large legal organizations, Fortune 500 corporations and governmental organizations.

Lanterman is recognized as an expert witness and is frequently asked to speak at national and international conferences. He has also been retained as a court appointed computer forensics expert.

In 2003, the Director of the U.S. Secret Service recognized Lanterman for his contributions to law enforcement.

Matt Willis has led dozens of security and forensic/incident response engagements for Fortune 500 companies while deploying advanced strategic services. Prior to joining Computer Forensic Services, Inc., Willis was the Chief Technology Officer for Guardent (now Verisign), where he helped create a security services practice and managed their R & D division.

Willis also formed a successful security practice (later sold to Guardent) that included clients such as the National Security Agency, the European Space Agency and several other Department of Defense agencies.

Tom O'Halloran comes to Computer Forensic Services after developing extensive experience in both the government and private sectors. As an agent and manger in the IRS he investigated or supervised cases ranging from narcotics conspiracies to tax protestors, bank security violations, and money laundering. After retiring from the IRS, O'Halloran began a forensic accounting firm that later merged with a larger Regional firm. O'Halloran has taught financial investigations as an adjunct professor for three universities and has been a frequent speaker at financial seminars and for business organizations.

Computer Forensic Services is excited to have a professional with over 30 years of law enforcement experience join our team. O'Halloran is a Certified Fraud Examiner, a Certified Forensic Interviewer, a Licensed Private Investigator in Minnesota and a Member of the Association of Certified Anti-Money Laundering Specialists.

Joseph Jovonovich has over 25 years in Federal Law Enforcement with US Border Patrol, US Customs and the Drug Enforcement Administration. His career has taken him to posts of duty in California, Indiana, Illinois, Minnesota, Texas, Nebraska and North Dakota. As an agent and supervisor, Jovonovich has investigated or supervised investigations ranging from narcotic conspiracies to money laundering cases, which in some instances were prosecuted under the Continuing Criminal Enterprise Statute. While the Special Agent in Charge of the North Dakota field office, Jovonovich had the added responsibility of overseeing and directing an Organized Crime Drug Task Force that had operational control in Minnesota and North Dakota.

After retiring from DEA, Jovonovich began a detective agency specializing in fraud investigations and was also a principal at FraudWise LLC, which has been integrated into Computer Forensic Services. Jovonovich is a Certified Fraud Examiner and a Licensed Private Investigator in North Dakota.

Thomas Buckhoff is an associate professor of forensic accounting at Georgia Southern University, and was also a principal at FraudWise LLC, which has been integrated into Computer Forensic Services. Dr. Buckhoff received his Bachelors and Masters degrees in Accountancy from Brigham Young University, and his Ph.D. in Accounting from the University of Kentucky. He is a certified Public Accountant (CPA), a Certified Fraud Examiner (CFE), and has worked as a senior forensic accountant with Eide Bailly LLP – Fraudwise division, and as the Eide Bailly Professor of Forensic Accounting at North Dakota State University.

Dr. Buckhoff has also published a variety of anti-fraud articles in the Journal of Forensic accounting, Journal of Accountancy, Advances in Accounting Education, Journal of Financial Crime, The CPA Journal, Strategic Finance, New Accountant, Issues in Accounting Education, and the Fraud Magazine.

Benjamin Green comes to ComputerForensic Services with a legal background
developed in the corporate and law firm arenas. Green is experienced in
litigation support and research for complex litigation matters, including
extensive discovery and motion practice. Green's experience includes
specializing in electronic discovery response, management, and production.

Prior to joining ComputerForensic Services, Green was a paralegal in the
litigation section of a major Minnesota law firm.