Colleen Theresa Brown, AIGP, CIPP/US

Colleen Brown is a nationally recognized lawyer 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 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.
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. She is ranked by Chambers USA (Nationwide, 2022–2025) and Chambers Global (USA, 2023–2025) in the Privacy & Data Security: Privacy and Privacy & Data Security: Cybersecurity categories. In the 2025 edition of Chambers USA, clients praised Colleen as “superb counsel” and that she “bridges the gap between legal and IT.”
Contributions by Colleen Theresa Brown
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Geopolitical AI Race: Leadership and Breaking Down Barriers
Speaker at IAPP AI Governance Global North America 2025 -
Establishing and Preserving Privilege in Cyber Investigations
Speaker at In-Person Austin KnowledgeNet: 23 July 2025 -
Managing Privacy at Scale
Speaker at IAPP Global Privacy Summit 2024 -
The COPPA Conundrum: The Future of Child Privacy Regulation and Enforcement
Moderator at IAPP Global Privacy Summit 2023