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[–] 1 point 1 year ago* (last edited 1 year ago) (5 children)

Why would one want to put their phone in a faraday cage? I know what the cage does, but don't understand why you'd want to use one instead of turning the device off.

Edit: According to this, unless your phone is compromised, turning it off is sufficient.

PDF link: https://media.defense.gov/2020/Aug/04/2002469874/-1/-1/0/CSI_LIMITING_LOCATION_DATA_EXPOSURE_FINAL.PDF

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  • [–] 7 points 1 year ago (4 children)

    Some phones, even if they are turned off, still send telemetry data.

    I use GrapheneOS and for safety reasons, when I know I won't get a call, or if I have to travel somewhere discreet, I'll use one :P Works well for me!

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  • [–] 2 points 1 year ago (3 children)

    Some phones, even if they are turned off, still send telemetry data.

    I can't find anything other than redditors making this claim. Is there a better source I can look into?

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  • [–] 5 points 1 year ago (2 children)

    I can't find any articles on it at this time. However, apple recently made it so that find my works with the phone off. My phone gives me warnings about this when I shut it down.

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  • [–] 3 points 1 year ago (1 child)

    Here's a pdf link to a 2020 NSA publication on the subject: https://media.defense.gov/2020/Aug/04/2002469874/-1/-1/0/CSI_LIMITING_LOCATION_DATA_EXPOSURE_FINAL.PDF

    It seems that powering the device off is sufficient unless the device is compromised.

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