Tate's Online Safety Substack

Tate's Online Safety Substack

Your Phone is a Tracking Device, and the Government (and Others) are Buying and Using the Data to Find You

A look at how tools like Penlink are used to track millions of phones, how trivial it is to identify a person with this data, and what you can do to reduce this risk in your life.

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Tate Jarrow
Jan 14, 2026
∙ Paid

I recently read an article from 404media.com, “ICE to Buy Tool that Tracks Locations of Hundreds of Millions of Phones Every Day” https://www.404media.co/ice-to-buy-tool-that-tracks-locations-of-hundreds-of-millions-of-phones-every-day/, which is a reminder of the risk of mass surveillance enabled by the vast amounts of data our devices collect about u…

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