this post was submitted on 14 Jun 2025
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Before going to a protest, demonstrators or observers should note that their cellphones may subject them to surveillance tactics by law enforcement. If your cellphone is on and unsecured, your location can be tracked and your unencrypted communications, such as SMS, may be intercepted. Additionally, police may retrieve your messages and the content of your phone if they take custody of your phone, or later by warrant or subpoena.

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[–] TaterTurnipTulip@lemmy.world 19 points 9 hours ago (1 children)

Your car's GPS is also tracking your movements. If you have a newer car then your phone is only part of the problem.

[–] twice_hatch@midwest.social 7 points 4 hours ago (2 children)

To be specific, it's not the GPS receiver, it's the fact that the car may be communicating via cell network or satellite, right?

[–] TaterTurnipTulip@lemmy.world 4 points 3 hours ago

Correct. Yeah, if you have a newer car with GPS, it will likely also have built in communications to the car company.

There are benefits to older, "dumber" cars. Besides enjoying knobs and buttons 😁

[–] dhork@lemmy.world 2 points 3 hours ago (1 children)

Right, but most modern cars have that communication built in, because they use it to update firmware remotely. You can't turn it off even if you wanted to. Many car companies justify it by saying it is needed to give your location to emergency services if you use their alert button.

[–] teuto@lemmy.teuto.icu 2 points 3 hours ago

Idk about other brands but with Mazda you can call and get them to deactivate your car's sim. IIRC in Subarus you can just physically unplug the communication unit.

[–] Lanske@lemmy.world 28 points 10 hours ago (4 children)
[–] surph_ninja@lemmy.world 15 points 4 hours ago* (last edited 4 hours ago) (1 children)

Also be aware that the Georgia attorney general has declared that not bringing your phone to a protest will be considered criminal intent. They’re now trying to punish people for not having their tracking devices with them.

https://georgiarecorder.com/2024/02/12/georgia-ag-claims-not-having-a-phone-makes-you-a-criminal/

[–] KingPorkChop@lemmy.ca 4 points 2 hours ago

This can probably be argued that places that deny phones, like courts, could be charged with criminal intent against you.

[–] boaratio@lemmy.world 2 points 4 hours ago
[–] tehn00bi@lemmy.world 3 points 6 hours ago

Go old school and bring cameras instead.

[–] Redredme@lemmy.world 20 points 11 hours ago (1 children)

If your phone is powered your location can be tracked. Secured or not: your location can always be tracked.

The rest is doubtful, always assume law enforcement has access at will.

Just don't bring it.

[–] GreenKnight23@lemmy.world 5 points 8 hours ago (1 children)

doesn't have to be powered on.

unless you can remove the battery, it should stay at home.

[–] bigpEE@lemmy.world 3 points 6 hours ago (1 children)

Source? EFF says airplane mode is sufficient per the article

[–] GreenKnight23@lemmy.world 5 points 5 hours ago (2 children)

so you're going yo trust the government funded org to tell you how to not be tracked by the government?

better yet, you're going to trust the company that actively works with the government under national defense that wants to track you to protect national defense?

no thanks. I'd rather be safe than detained.

[–] bigpEE@lemmy.world 2 points 5 hours ago (2 children)

Until I see a shred of evidence that airplane mode doesn't disable the radios, yes, I'm going to trust the manufacturers, the EFF, and my background in EE

[–] dhork@lemmy.world 2 points 3 hours ago

I tend to agree (and also an EE). Airplane mode isn't a total panacea, though. It just disables the cellular radio. While it also disables the Wifi and Bluetooth, those can always be turned back on, even while Airplane Mode is active. A motivated state actor can absolutely track via Wifi or Bluetooth. (Possibly even NFC, but the range on that is so low that I think it would impossible to do without seeing what is tracking you).

Turning the phone off is the best solution if you want to keep rhe phone on your person. Guaranteed that all possible avenues for tracking is off, and also has the advantage that even if the phone is seized, the latest phone OSes require the passcode before doing anything at all when they first power up. Even the Police are limited in the data they can get off a phone that has just powered up and is asking for the passcode.

[–] GreenKnight23@lemmy.world 1 points 5 hours ago

cool. you do you then.

I'll keep doing whatever I need to ensure my freedom by not trusting government or corporate guidelines.

[–] blockheadjt@sh.itjust.works 19 points 14 hours ago (2 children)

Set your phone on top of a Roomba that has scheduled cleaning throughout the day.

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[–] Buske@lemmy.world 21 points 16 hours ago

YOU DONT BRING IT.

[–] Deflated0ne@lemmy.world 12 points 15 hours ago

By leaving it at home.

[–] finitebanjo@lemmy.world 5 points 13 hours ago

Buy a Burner.

[–] SoftestSapphic@lemmy.world 37 points 20 hours ago (5 children)

Leave it at home for a protest if you care about being tracked.

Pretty much all cell phones can be tracked even when turned off.

[–] bigpEE@lemmy.world 1 points 6 hours ago

Source? EFF says airplane mode is sufficient per the article

[–] HappyRedditRefugee@lemm.ee 1 points 7 hours ago

Could you not wrap it in thin foil to make a faraday cage? If done well it should prevent any signals for going in or out.

puts on thin foil hat

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[–] wanderwisley@lemm.ee 53 points 1 day ago (8 children)

Turn it off and leave it at home.

[–] NikkiDimes@lemmy.world 38 points 1 day ago* (last edited 1 day ago) (9 children)

Leave it on at home.

"Your honor, as you can see from my mobile device location history, I never even left my house that day."

Not that that'll actually work or that they'll care, but still...

[–] biggerbogboy@sh.itjust.works 2 points 8 hours ago

Even better, have your tv on the whole time, so if the tv sends telemetry data that's also linked to the phone, it'll show you were at home the whole time.

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