Pointless, unless you leave the roomba running outdoors. Indoors you don't have GPS coverage, and your phone is logged onto the same cell tower anyway. Might just leave it stationary at home, same outcome.

When I shut the lid on my work computer I assumed it was "off" or at least inactive. My home network showed me it was continuing to "check in" throughout the night.

Even sitting on a couch moves your phone more than simply laying on a table. They can use accelerometer data to determine how, if at all, it moved.

• EFF Guide.

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.

i don't know what you just said but the whole point of a protest is to disrupt in order to be seen.

I went to jail for trespassing. same as everyone else. its bullshit.

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...

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.

Even with a libre OS and all radios turned off? (So to use the phone as a camera and offline navigation)

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.

If your "blue leaders" are any good, they enforce psych profiles on police recruitment that ensures you don't have a force full of racist authoritarian law in their own hands radicals, at least for the forces they control - feds may be a different story.

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.

When they've got a cell full of detainees and they're deciding who ICE is going to ship to "advanced processing" who do you think goes to the front of that line? I'm guessing it's the "undocumented," regardless of whatever laws you're focused on.

Don't bring it?!

doesn't have to be powered on.

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

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.

Source? EFF says airplane mode is sufficient per the article

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.

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.

What government funding does the EFF take in?

Closing the lid typically does sleep or hibernate, both of which can still be active. I've had many windows updates overnight with the lid closed.