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[liberationtech] Cell phone tracking

Eugen Leitl eugen at
Fri May 24 13:04:54 PDT 2013

On Fri, May 24, 2013 at 12:56:32PM -0700, Yosem Companys wrote:
> From: Dan Gillmor <dan at>
> Given the vanishingly small likelihood that companies or governments
> will do anything about cell phone tracking, I'm interested in what
> countermeasures we can take individually. The obvious one is to turn
> off GPS except on rare occasions.
> I'll be discussing all this in an upcoming book, and in my Guardian
> column soon. So I'd welcome ideas.

Pull out the battery. That's the only thing that's guaranteed
to work.

Even with GPS switched off you can be triangulated by base
stations by receiving a silent text.

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