A Faraday cage is supposed to be grounded, so aluminum foil isn’t the same thing. Maybe you could turn the phone off, wrap it in foil, and then place it upon a conductive metal surface that is grounded, such as a 240v kitchen appliance
Comment on Inside the U.S. Government-Bought Tool That Can Track Phones at Abortion Clinics
WoodScientist@lemmy.world 4 weeks agoWouldn’t just keeping your phone in a metal box prevent it from communicating with anything? Keep your phone in a metal box and only take it out when you need it. Only take it out in a location that isn’t sensitive. Or hell, just make a little sleeve out of aluminum foil. Literally just wrapping your phone in aluminum foil should prevent it from connecting to anything. A tinfoil hat won’t serve as an effective Faraday cage for your brain, but fully wrapping your phone in aluminum foil should do the job. Even better, as it’s a phone, such a foil sleeve should be quite testable. Build it, put your phone in it, and try texting and calling it. If surrounded fully by a conductive material, the phone should be completely incapable of sending or receiving signals.
RaoulDook@lemmy.world 4 weeks ago
Hazor@lemmy.world 4 weeks ago
You could also just turn it off.
WoodScientist@lemmy.world 4 weeks ago
You sure it’s still not phoning home? How do you know “off” is really “off” anymore with a modern phone? It’s not like an old flip phone that you can just pop the battery out.
EndlessNightmare@reddthat.com 4 weeks ago
I absolutely do not trust that an “off” phone is actually off, unless the battery is removed (assuming it can be).
Maggoty@lemmy.world 4 weeks ago
Yes. When your phone is off, it is off.
If you’re paranoid you can buy a faraday bag.
WoodScientist@lemmy.world 4 weeks ago
The iPhone remote locator function still works when the phone is powered off. It doesn’t work when the battery is completely dead, but it does work when the phone is supposedly “powered off.” This is irrefutable proof that iPhones at least retain some of their functions even when you’ve “turned them off.”
winterayars@sh.itjust.works 4 weeks ago
I don’t want to encourage paranoia here but “off” does not mean “off”. Modern phones are almost never actually “powered down”. If you’re paranoid, turning your phone off is not enough. Leave it behind.
(Also a gap in your phone’s location history can also be used against you, fwiw.)
Bytemeister@lemmy.world 4 weeks ago
Yeah, and Alexa/Siri/Google assistant don’t eavesdrop unless you use the magic words to activate them.