The NSA warned staff that smartphone apps can track them. Here are their recommendations to avoid tracking.
The guidance highlights a practice that's common across Silicon Valley products but rarely understood by consumers: smartphones are constantly gathering information on users' location, through a combination of apps, the smartphone's own hardware, and the telecommunications networks that they use.
Apps typically share that data with third-party brokers, who in turn sell it to clients including private companies and government agencies. The data is anonymized, meaning it's not directly tied to a person's identity — but researchers have consistently found that anonymized location data can easily be traced back to specific people.
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