
Mayer Brown is noted for its contentious and non-contentious expertise and is equipped to handle transnational cyber incidents, global data breaches, and regulatory issues. The firm has strong credentials in putative class actions against technology companies and AI and data privacy compliance. The practice is led by Rajesh De in Washington DC, well-versed in cyber attack litigation, ransomware incident response, and navigating the DOJ investigations, with additional expertise in AI, national security, and intellectual property. Also in Washington DC, Stephen Lilley is adept at analysing cyber and data risks, incident response, and defending litigation, with particular experience in national and cyber issues involving the Internet of Things, including vehicles, medical devices, and manufacturing. Adam Hickey leverages his previous experience as Deputy Assistant Attorney General with the DOJ and NSD when advising on cyber threats, investigations, and enforcement actions relating to national security authorities. The team has been bolstered by the arrival of Lei Shen from Cooley and Veronica Glick from the US Department of State.
Legal 500 Editorial commentary
Key clients
- TikTok, Inc.
- ByteDance, Inc.
- Yum! Brands
- Cloudflare
- Google, Inc.
Work highlights
Representing TikTok Inc. and ByteDance Inc. in a variety of complex legal matters, including high-profile class action lawsuits alleging privacy violations related to data collection and usage on both the TikTok and CapCut platforms.
Advising Cloudflare, a global leader in cloud services, on a wide range of complex cybersecurity and data privacy challenges.
Representing Google LLC in a multi-district litigation centralized in the District of Delaware that made up of more than 20 consumer class actions arising from allegations that Google improperly placed tracking cookies on Safari and Internet Explorer web browsers.
Lawyers
Hall of Fame
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Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Practice head
Rajesh De
Other key lawyers
Stephen Lilley; Adam Hickey; Lei Shen; Veronica Glick

