About

Provided by Sheppard, Mullin, Richter & Hampton LLP

Sheppard Mullin’s Privacy & Cybersecurity Team advises a wide range of clients, including many of the country’s most recognizable brands and largest retailers, on privacy counseling, compliance strategies, data breach response and high-stakes privacy litigation.

Our all-practitioner team provides practical guidance on complex U.S. and global privacy laws, such as CCPA, BIPA and TCPA. We are leaders in designing and embedding robust privacy programs, applying change management strategies to integrate compliance into business operations. Clients benefit from our experience on privacy law and our holistic approach to regulatory requirements.

We work closely with clients to assess and strengthen data security practices, develop policies and conduct tabletop exercises. When incidents arise, we deliver immediate, comprehensive support—guiding clients from notification through regulatory response—minimizing risk and reputational impact. Our portfolio includes successful management of major domestic and global data breaches.

Sheppard Mullins has a proven track record of defending data breach class actions, privacy claims, BIPA claims, web tracking and regulatory enforcement matters. Our team regularly achieves results through dismissals, favorable settlements, and strong advocacy in trial and appeal. We bring unique experience in mass arbitration and have secured landmark victories, including precedent-setting outcomes for Fortune 500 clients.

Chambers Review

Provided by Chambers

Privacy & Data Security: Highly Regarded - USA - Nationwide

3
Band 3

What the Team is Known For

Sheppard Mullin's privacy and cybersecurity team are subject matter experts having written treatises on data breach and security law. The firm is often called upon to advise on compliance, data security incidents, data breach class actions and bet-the-company privacy litigation. The group is highly sought after by those in the retail and financial services sectors.

Work Highlights

  • Sheppard, Mullin, Richter & Hampton LLP represented Levi's as outside privacy counsel, providing advice and support on data questions and compliance with new privacy laws.

Strengths

Provided by Chambers

Notable Practitioners

Provided by Chambers

Liisa Thomas
3
Liisa Thomas
3
Band 3

Liisa Thomas is leader of the firms cybersecurity team and fulfills a general advisory role. She is often seen advocating for her clients in contentious data breaches across a plethora of industries, including consumer brands, advertising agencies and education institutions.

Liisa is a very talented lawyer who brings a very clear understanding and straightforward explanations to complex data privacy topics.

Liisa has quickly endeared herself to our entire corporation with her expertise, practical advice, wit and kindness. We absolutely love Liisa.

Liisa is fantastic.

Liisa is absolutely golden.

Working with Liisa has been first-rate. We often help clients in the darkest moments and Liisa's ability to think and get through the complexities is first-rate.

Ranked Lawyers at
Sheppard, Mullin, Richter & Hampton LLP

Provided by Chambers
Filter by
Band

USA - Nationwide

Privacy & Data Security: Privacy

Liisa Thomas
3
Liisa Thomas
3
Band 3

Members

Provided by Sheppard, Mullin, Richter & Hampton LLP