Solution & Methodology
We analyzed 450 million advertisements collected through Meta's Ad Library API since August 2023. Our approach identified instances where identical or nearly identical text was published by multiple advertiser pages—a pattern suspicious when tens or hundreds of distinct pages publish identical content. To identify potential health scams, we conducted semantic analysis of duplicated advertisements, focusing on health-related terms. The 46,000+ advertisements promoted unapproved drugs, using celebrity deepfakes, and impersonating news outlets and target vulnerable populations.