Harry A. Lidsky (Founder)
4DISS was founded by Harry A. Lidsky in 2023, following his retirement after 24 years of federal government service. Harry is a dynamic and innovative leader with a distinguished career in federal law enforcement and the intelligence community. During his tenure, Harry identified a need for tailored and creative investigative and security solutions. Prior to starting 4DISS, Harry served in various senior leadership positions within the U.S. government.
From March 2010 - September 2023, Harry worked for the Department of Justice - Office of the Inspector General, serving as a Senior Special Agent, Assistant Special Agent in Charge, and Special Agent in Charge of the Cyber Investigations Office. In those capacities at DOJ-OIG, Harry performed computer and mobile device forensic analysis, initiated insider threat investigations, conducted financial analysis, and conducted surveillance, technical, and undercover operations in furtherance of criminal investigations. As SAC, Harry led the DOJ-OIG team of insider threat, cyber security and digital forensic experts who investigate and prosecute cyber crimes affecting the Department of Justice and was responsible for the day-to-day operations of the DOJ-OIG office. Prior to joining DOJ-OIG, Harry spent over 10 years working in the intelligence community and as a Special Agent with the Drug Enforcement Administration. During that time, Harry executed hundreds of search warrants, arrests, seizures, and other enforcement actions; performed comprehensive electronic surveillance, including wiretaps; and conducted undercover operations.
Harry has testified at more than 200 federal proceedings, including jury trials, hearings, and grand jury inquiries. Harry has received numerous awards for leading high profile investigations and locating and recovering critical evidence. Harry's experience is now available to private sector clients through 4DISS.
Learn more about some of Harry's casework in the "Featured" section on his LinkedIn page here:
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