What is Fog Data Science? Why is the Surveillance Company so Dangerous?

An investigation reveals that law enforcement agencies are using Fog Data Science to conduct mass surveillance by purchasing continuous geolocation data from smartphone apps without warrants. This technology allows police to track the precise movements of hundreds of millions of Americans, including their attendance at protests or visits to sensitive locations like clinics and attorney offices. By bypassing judicial oversight, this practice undermines Fourth Amendment protections against unreasonable searches and compromises First Amendment rights by chilling participation in lawful assemblies. This issue is critically relevant to open data because it highlights how commercially available datasets can be repurposed for government surveillance, eroding individual privacy even when data is ostensibly anonymized. The ease with which police can access these records demonstrates the dangerous gap between data collection for advertising and its subsequent use for law enforcement. It serves as a stark reminder that open or commercial data ecosystems lack inherent safeguards, allowing private sector aggregation to facilitate widespread, warrantless monitoring of public behavior. To mitigate these risks, individuals must restrict app permissions and disable ad tracking to limit data leakage, but systemic change requires legislative action. Comprehensive consumer privacy laws and bans on behavioral advertising are essential to reduce the supply of location data available for purchase. Ultimately, lawmakers must prohibit government entities from buying geolocation data from brokers, ensuring that digital privacy is protected from both commercial exploitation and unchecked state surveillance.

Source: eff.org
Published on 2025-07-10

What is Fog Data Science? Why is the Surveillance Company so Dangerous?

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