& Compliance
Investigation
& Management
Mullen Coughlin LLC is a law firm dedicated exclusively to representing organizations facing data privacy events, information security incidents, and the need to address these risks before a crisis hits. Founded by John Mullen, Jennifer Coughlin, Jim Prendergast, and Chris DiIenno, our team of accessible and motivated attorneys have handled thousands of events and possess experience and talent in data breach response, regulatory investigation defense, pre-breach planning and compliance, and privacy and security litigation defense unmatched in the industry.
Rounding out the summer, Mullen Coughlin welcomed one (1) new Associate to the Firm – Mitchell Slifka – in our Advisory Compliance practice group.
Mitch focuses his practice on counseling organizations from all industry sectors with proactive and pre-incident data privacy and information security compliance across U.S. federal, state, and local regulatory regimes. He is also a former Law Clerk with Mullen Coughlin, where he assisted with preparing and developing tabletop exercises and analyzing legislation and regulations relevant to data privacy and protection, AI, and incident response planning.
In addition to his J.D., Mitch also holds an LL.M in Banking and Financial Law and an MBA. He is licensed to practice in Kentucky.
Mullen Coughlin Partner Chris DiIenno joins the faculty of PLUS’s 2026 Cyber University held virtually on Thursday, September 17. Chris presents the session “Breach Scenario – Surviving a Cybersecurity Incident” alongside Mark Sadler of Great American Insurance Group and Evgueni Erchov of CYPFER.
This session, designed for entry-level professional liability practitioners, walks attendees through a hypothetical data breach scenario. Chris, using his and Mullen Coughlin’s collective Breach Counsel experience, provides an overview of the Incident Response (IR) process beginning with identifying the incident and engaging appropriate IR stakeholders through resolution, notification, and post-incident follow-up and inquires.
PLUS University is held virtually September 15-17. Learn more here.
At the 2026 CLM Claims College, Mullen Coughlin Litigation Partner Jordan O’Donnell joins the faculty for the “School of Cyber and Technology Risk,” in session September 9-11 in Baltimore, MD. The “School of Cyber and Technology Risk” provides students with the skills needed to proactively and effectively manage cyber claims under traditional and stand-alone cyber insurance policies.
Jordan instructs on the foundations of data privacy and data security law and risk management principles, providing students with an understanding of the cyber threat landscape and strategies to resolve third-party cyber claims including liability exposure, costs and expenses, and emerging technologies. Jordan is joined on the faculty by insurance, legal, and digital forensics professionals.
Learn more about CLM Claims College here.