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Cbp uses online ads to shadow peoples’ locations

CBP's Use of Ad Data Sparks Privacy Concerns | Tracking Movements through Apps

By

Isabella Martinez

Mar 4, 2026, 05:41 AM

Edited By

Luis Martinez

3 minutes needed to read

A visual representation of online ads tracking people's locations with digital icons and maps
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Customs and Border Protection (CBP) has come under fire for purchasing data from the online advertising sector to monitor people's movements. An internal Department of Homeland Security (DHS) document reveals how apps like games, dating services, and fitness trackers are involved. This has opened a contentious dialogue about personal privacy versus national security.

The Controversy Unfolds

Sources confirm that the CBP bought location data sourced mainly from real-time bidding (RTB) processes. This practice allows for collected mobile data during ad display to be auctioned among companies, raising alarms about surveillance capabilities.

Comments from the community reflect strong disapproval. One user stated, "Feels like a 4th amendment violation," highlighting concerns over privacy rights. Another insider noted the extensive data available in the advertising ecosystem, suggesting even app developers may be unaware of their roles in this surveillance effort.

"This sets a dangerous precedent," a top commenter argued, shedding light on potential consequences as these practices grow.

Implications for Personal Privacy

Recent developments indicate that CBP’s actions are not isolated. Immigration and Customs Enforcement (ICE) has also expressed interest in similar “Ad Tech” data for monitoring purposes. In fact, around 70 lawmakers urged DHS oversight to reassess ICE’s location data purchases following these revelations.

Key Takeaways:

  • 🚨 CBP purchased data from online ad firms, including RTB sources.

  • 📊 This data can track the movements of countless mobile phones.

  • 🛡️ A growing coalition of lawmakers is pushing for oversight investigations.

  • 🔍 Many apps, including popular gaming and dating services, are conduits for this data collection.

Some have pointed out that the data collection may not be done with the app developers’ explicit knowledge. The seamless nature of data siphoning raises ethical questions about privacy and consent.

What's Next?

As agencies like ICE seek to widen the scope of their surveillance tools, questions remain: How far are we willing to let government agencies use data from private enterprises? With no national privacy law in place, vigilance is crucial. The public may need to consider—not just for themselves but for future generations—the implications of such access to personal data.

"Government has realized it’s easier to buy our data legally on the open market than go to a secret judge," remarked one concerned individual, emphasizing the urgency of establishing robust privacy protections.

It appears we are entering a new era where data purchasing for surveillance could become a common practice, leading to ongoing debates about citizen rights in the digital space.

Eyes on the Horizon for Data Regulation

There’s a strong chance that the pressure on lawmakers will lead to a national privacy law as the growing discontent around CBP's data practices spreads. Experts estimate around 60% of lawmakers could support stricter regulations if public outcry continues to mount. Increased transparency in how data is collected and used seems to be a likely development, as agencies face heightened scrutiny from both the public and their own oversight committees. While immediate action may not happen, a gradual shift towards more accountability in data usage appears imminent.

A Window to the Past: The Draft and Privacy

Drawing a parallel to the Vietnam War era, people protested against government surveillance tactics under the guise of national security, sparking a push for civil liberties. Just as that movement transformed public perceptions and led to significant policy changes regarding privacy — from the Freedom of Information Act to later amendments — today's digital privacy struggles echo those past battles. As more people become aware of these contemporary privacy concerns, we may see a resurgence of similar advocacy, challenging the balance of freedom and security once again.