Shared here for public benefit.

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.

  • Redredme@lemmy.world
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    1 day ago

    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
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          1 day ago

          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
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            1 day ago

            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
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              1 day 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
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              1 day ago

              cool. you do you then.

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

  • SoftestSapphic@lemmy.world
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    2 days ago

    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.

    • HappyRedditRefugee@lemm.ee
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      1 day 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

  • AA5B@lemmy.world
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    2 days ago

    Jesus Christ, this conversation is scary. I wish y’all good luck that none of these precautions are necessary.

    As someone in a blue state where governance is sane, I’m “raw dogging it” (effing offensive slang term but now I’ve used it once in my life and can rest easy) and bringing my kids (teens). M also going to the local demonstration rather than go into the city for a big one - to some extent it’s a numbers game: ICE can’t raid them all and police aren’t legally allowed to help them

    …. And hopefully my optimism is well founded

    —-

    Edit: huge success! Entirely peaceful. While a few cops drove by, there was no police presence. Thousands of people of all ages lining both sides of main st, and three sides of our town common. Constant honking from supporters driving by. It was very inspirational. I’m proud of my fellow citizens and hope our voice for restoring sanity and democracy is heard.

    For those pessimists,a bit more context why I was so optimistic…… a few years back, our mayor and police were participants in a local BLM rally. Also a big part of local outrage against fascism was a city counselor getting assaulted and arrested for videoing an illegal raid on one of his constituents.

    • GreenKnight23@lemmy.world
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      1 day ago

      I’m happy that you felt safe in a peaceful protest, but keep in mind that stingrays can be operated from airplanes at 10,000 ft. you likely would never hear them at a noisy protest and it would be the size of a grain of rice in the sky.

    • TheFriar@lemm.ee
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      2 days ago

      I’m in one of the bluest. Our police and FBI are not “blue.” American spy forces and “committee on anti-American activities”-ass motherfuckers are not kind or just, no matter the voting tendencies of the populace.

      How many decades have we seen far right terror groups overlooked for anti-capitalist leftists? The left threatens the status quo, the right fortifies it. The blue and red dichotomy is the status quo. The democrats support the genocide in Palestine. Going against that status quo makes you not safe from government crackdowns, the party in power is completely irrelevant.

    • billwashere@lemmy.world
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      2 days ago

      The fact that this conversation is even necessary is to me more scary.

      I used to think the Bush era was bad. I’d gladly trade that for now.

  • Uriel_Copy@lemmy.world
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    2 days ago

    I learned this recently: if you have an iPhone, pressing the lock button five times rapidly will lock it so that you need to enter a passcode, not just FaceID. Useful if you think somebody might forcibly use your face to unlock it

    • athairmor@lemmy.world
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      2 days ago

      Yes, but this will also call emergency services after, I think, ten seconds.

      Make sure you cancel that call right away unless you actually need them.