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Last Update: 09/22/2026 at 11:34 PM EST
Ad Auctions Expose Hidden Surveillance
Coverage from IFEX, Committee to Protect Journalists, and others
Investigations and research show that real-time bidding, software development kits, data brokers, and advertising intelligence services can expose precise locations, routines, contacts, and browsing profiles.
The same commercial ecosystem has also supplied geolocation data to government agencies, raising concerns about warrantless access, weak privacy assessments, transnational exposure, and risks to journalists and their sources.
Looking Back
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Important
The Committee to Protect Journalists reported in 2026 that commercial online advertising systems expose journalists and sources to surveillance risks across Europe and the United States.
9/20/2026 • Data Collection & Surveillance Practices • General
European journalists and researchers found in 2025 and 2026 that commercial advertising data in Europe and the United States could track journalists and expose their routines.
8/28/2026 • Data Collection & Surveillance Practices • General
On August 12, DecryptAds launched in the United States to map real-time bidding supply chains linked to commercial location-data collection and government surveillance.
8/13/2026 • Data Collection & Surveillance Practices • General
Jonathan Rozen's August 27, 2026 paper examines how global online advertising systems expose journalists and sources to surveillance by companies, law enforcement, and governments.
8/27/2026 • Data Collection & Surveillance Practices • General