Ranked in 2 Practice Areas
Ranked in Guides

About

Provided by Colleen Theresa Brown

Global

Practice Areas

COLLEEN BROWN is a nationally recognized partner in the Privacy and Cybersecurity practice of Sidley Austin with an increasing focus on AI. She provides strategic advice on digital risk management for a diverse range of companies, including those in the financial, insurance, life sciences, tech, energy, telecommunications, media, retail, and manufacturing sectors. Her clients turn to her for compliance advising, digital governance, investigations, litigation and regulatory enforcement defense, and crisis management related to AI, privacy, cybersecurity, and incident response. Colleen is widely viewed as a thought leader and go-to counsel in privacy and cybersecurity law, having developed an exceptional track record for steering her clients through their most challenging matters and achieving excellent results.

Colleen is a Certified Information Privacy Professional (CIPP)/United States and a certified Artificial Intelligence Governance Professional (AIGP) through the International Association of Privacy Professionals (IAPP). She is on the Advisory Boards of the Electronic Privacy Information Center and the Future of Privacy Forum in her personal capacity, and at Sidley she serves on the Steering Committee of the firm’s AI Working Group. Additionally, Colleen is editor-in-chief of Sidley’s blog, Data Matters, a trusted resource for the latest developments on tech law and regulation.

Chambers Review

Provided by Chambers

Chambers Global Guide

Privacy & Data Security: Privacy - USA

4
Band 4
Individual Editorial
Colleen Theresa Brown has a strong privacy practice managing data breach issues and litigation. She also has experience of working on privacy matters following acquisitions.

Privacy & Data Security: Cybersecurity - USA

5
Band 5
Individual Editorial
Colleen Theresa Brown has a strong privacy practice managing data breach issues and litigation. She also has experience of working on privacy matters following acquisitions.

Contributions

Latest contributions provided by Colleen Theresa Brown

Global Practice Guide
Colleen T. Brown
Stephanie Y. Lim
Michael C. Hochman
Authored by
Colleen T. Brown, Stephanie Y. Lim, Michael C. Hochman
Article • May 2026
Global Practice Guide
Colleen T. Brown
Stephanie Y. Lim
Garrett M. Lance
Authored by
Colleen T. Brown, Stephanie Y. Lim, Garrett M. Lance
Article • May 2026
Global Practice Guide
Colleen T. Brown
Stephanie Y. Lim
Jack W. Pirozzolo
Authored by
Colleen T. Brown, Stephanie Y. Lim, Jack W. Pirozzolo
Article • May 2026

All contributions provided by Colleen Theresa Brown

Sort by - Most recent
Title and authorsContent typePublication dateMedia type
Artificial Intelligence 2026 | USA – Florida | Trends and Developments
Authored by: Colleen T. Brown, Brittany A. Bolen, Stephanie Y. Lim
Global Practice Guide May 2026 Article
Artificial Intelligence 2026 | USA – California | Trends and Developments
Authored by: Colleen T. Brown, Stephanie Y. Lim, Sheri Porath Rockwell
Global Practice Guide May 2026 Article

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