John Iannacone

1275 Drummers Lane
Wayne, PA 19087

Office: (267) 930-4797
Fax: (267) 930-4771


Temple University School of Law
Juris Doctor, 2013

The Pennsylvania State University
Bachelor of Science
Finance, 2007


  • Pennsylvania

John Iannacone is an associate attorney at Mullen Coughlin. Mr. Iannacone focuses his practice on assisting clients with data privacy events, network security and incident response. In the event of a breach, Mr. Iannacone supports his clients throughout their investigation and coordinates forensics teams to determine the scope of the breach. Mr. Iannacone advises clients on interpretation of state, federal, and international data privacy laws and how they are applied to each client’s unique circumstances. Mr. Iannacone also works with his clients to satisfy any notification duties created by a data event and respond to any resulting regulatory inquiry.

Before joining Mullen Coughlin, Mr. Iannacone was an Assistant District Attorney in the Philadelphia District Attorney’s Office, where he served as lead counsel on felony jury and bench trials for violent crime, complex narcotics investigations and firearms offenses. Mr. Iannacone managed all responsibilities as lead counsel on cases including motions to suppress evidence, plea negotiations, trial, and sentencing hearings. His extensive litigation experience includes trying hundreds of cases and the use of expert witnesses in various fields including DNA/trace evidence, ballistics, arson/explosives, and historical cell site analysis.

Prior to his time with the District Attorney’s Office, Mr. Iannacone served as a judicial law clerk to the Honorable Chris R. Wogan of the Philadelphia Court of Common Pleas and worked in the Forensic Services practice at KPMG, LLP. While at KPMG, Mr. Iannacone applied different analytical and investigative procedures for publicly traded banks focusing on money laundering fraud schemes, Bank Secrecy Act issues, terrorist financing, mortgage fraud, and violations of foreign and domestic currency regulations.