11 May 2026
Simpson Thacher Strengthens AI, Privacy and Cybersecurity Practices with Hires Matt Kelly and Kim T. Le
"Simpson Thacher hires Matt Kelly and Kim T. Le as Partners to lead its AI Practice and West Coast Privacy and Cybersecurity team, bolstering AI, privacy and cybersecurity capabilities."
Matt Kelly will serve as Head of the Firm’s AI Practice. He advises clients on artificial intelligence governance, cybersecurity and data privacy, including regulatory compliance and risk management, enforcement matters, commercial disputes and internal investigations. Matt is recognized for his technical sophistication and practical approach, and works with public and private companies across industries, with particular focus on highly regulated, data-driven businesses. He has helped clients design and implement AI and model governance frameworks and has represented clients in AI, cyber and data-driven matters before U.S. enforcement and regulatory authorities. Based in the Firm’s New York office, he is ranked by Chambers for Privacy & Data Security and recognized by The Legal 500 US for Cyber Law; he has been named an “AI Visionary” by Relativity and a “Client Service All Star” by BTI Consulting.
Kim T. Le will lead the Firm’s West Coast Privacy and Cybersecurity team. She advises on privacy, data security and cybersecurity matters with a particular focus on complex healthcare and life sciences transactions. Kim regularly counsels provider organizations, technology companies, sponsors and strategic buyers on regulatory compliance, data breach preparedness and privacy and security diligence, including matters involving HIPAA, CCPA/CPRA and other healthcare-related privacy issues. Based in the Firm’s Los Angeles and Bay Area offices, she is noted for pragmatic, business-focused advice, has been recognized by Law360 and BTI Consulting, serves as an editor of professional treatises including the PLI Privacy Law Answer Book and the Health Care Mergers and Acquisitions Answer Book, and frequently appears on data-focused panels and forums.