The new service DecryptAds provides a free, searchable database that scrapes and correlates adtech data to help users identify the companies tracking them across websites and mobile applications.

Key Points

• DecryptAds aggregates publicly available files like ads.txt, app-ads.txt, and sellers.json to map the complex advertising supply chain.
• The platform identifies high-risk ad partners, including those based in countries like Russia, China, and the UAE, which may pose security or privacy threats.
• Researchers use the tool to track malicious "malvertising" campaigns, AI-generated content farms, and data brokers harvesting geolocation or device fingerprinting information.
• A "quiet removals" feature tracks when ad exchanges silently drop partners, helping to expose suspicious activity that is typically hidden from the public.
• The service includes a Legal Dossier lookup to reveal ownership relationships and historical data for specific domains and mobile applications.

Why it Matters

This tool provides much-needed transparency into the opaque adtech ecosystem, allowing security researchers and privacy-conscious users to identify potential threats like malware and data harvesting. By exposing the hidden connections between ad networks and content farms, it empowers users to make informed decisions about their digital footprint and the risks associated with specific websites and apps.