Stephen Lilley is a partner in the Washington DC office of Mayer Brown. He focuses his practice on helping clients navigate cutting-edge and interrelated litigation, regulatory, and policy challenges. A member of the firm’s Supreme Court & Appellate practice, Stephen briefs complex appeals and dispositive motions, and develops strategies to manage legal risks and to shape regulatory policy across a broad range of substantive areas.
He frequently litigates and advises clients on cybersecurity and data privacy, and consumer financial services matters. Stephen is widely recognized for his cybersecurity law and policy experience.
He co-authored the firm’s guides on Cybersecurity Regulation and Cyber Incident Response, and served as a member of the Center for Strategic & International Studies Cyber Policy Task Force as it developed cybersecurity recommendations for the administration. Stephen’s recent cybersecurity and data privacy matters include:
- Representing petitioner in Spokeo, Inc. v. Robins before the US Supreme Court.
- Advising an automobile manufacturer on regulatory and legislative developments, and litigation arising from emerging cyber threats.
- Providing strategic counsel to companies in a wide range of industries as they assess their cybersecurity posture and engage with their boards of directors.
- Drafting comment letters for a leading trade association in response to cybersecurity rulemakings.
Before joining Mayer Brown, Stephen worked for the US Senate Judiciary Committee as Chief Counsel to the Subcommittee on Crime and Terrorism, where he had a particular focus on cybersecurity.
He clerked for Judge Thomas Ambro on the US Court of Appeals for the Third Circuit and Judge Jeremy Fogel on the US District Court for the Northern District of California. A summa cum laude graduate of Princeton University, Stephen received his law degree from Yale Law School, where he served as a Senior Editor of the Yale Law Journal.
- Yale Law School, JD
- Princeton University, AB, summa cum laude
- District of Columbia
- US Supreme Court
- US Court of Appeals for the Third Circuit
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