David Ostertag

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Dave Ostertag is the global investigation manager and chief operating officer for Global Security Services at Verizon and has more than 40 years of investigative experience in the government and security arenas. Dave coordinates the forensic investigations conducted by the investigative response unit worldwide. Dave has taken the lead on many of the highly publicized large data compromise investigations over the past few years. In addition, he is considered a leader in criminal and civil investigative techniques, is a certified expert witness, and is a frequent instructor and speaker on the topics of data compromise investigation and international criminal organizations.

Dave worked as a retail regional investigator prior to going into police work. He spent 14 years as a police detective sergeant and four years as a state’s attorney investigator. Dave was the global manager of field investigations for Discover Financial for over ten years prior to joining Verizon. He serves on the board of advisors for the International Association of Financial Crimes Investigators.

Dave has worked extensively with law enforcement in the investigation, identification, arrest, and prosecution of individuals and groups involved in international organized criminal data compromise and fraud.