Head of Media Quality and Standards at TAG (Trustworthy Accountability Group)
TAG is a critical standards body in AdTech, and Duff's leadership role in media quality and fraud prevention makes her a notable figure in the industry's ongoing efforts to improve supply chain integrity.
Last updated Apr 18, 2026 by jonholm
Liz Duff leads media quality and standards initiatives at TAG, the industry body focused on fighting ad fraud, brand safety, and supply chain transparency. She works closely with advertisers, agencies, and technology providers to advance anti-fraud certification programs.