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356

Going to a Protest? Don't Bring Your Phone Without Doing This First (www.pcmag.com)

submitted 2 days ago by throws_lemy@lemmy.nz to c/technology@lemmy.world

137 comments fedilink hide all child comments

The right to assemble and protest is enshrined in American law, but it can still be dangerous to hit the streets to make your voice heard. Your devices are a treasure trove of information about you, and you may not always know who's collecting that data. Take a few minutes before you go to assess your digital and physical safety. Even if you have nothing to hide, you don't want to accidentally give law enforcement officials any information you didn't intend to share. Follow these tips to lock down your phone before a protest or other peaceful assembly.

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[+] Jyek@sh.itjust.works -11 points 2 days ago (4 children)

This is slightly false in an alarmist fashion. At least in the US, the police are not actively tracking anything without a subpoena to the cellular provider of the phone in question. They can look at the location data after the fact, using a court ordered subpoena. They can also use live location data in an emergency situation,also using a court ordered subpoena.

Cellular data from cell towers on cell networks are private property of the cellular provider companies. That's not to say you are private while on them. Just that the police are not actively tracking your location through them without great effort for each individual they wish to track.

[–] linuxguy@lemmy.gregw.us 14 points 2 days ago

You've never heard of a stingray or cell site simulator?

[–] Bazoogle@lemmy.world 14 points 2 days ago (1 children)

Commercial location data, in this case acquired from hundreds of millions of phones via a company called Penlink, can be queried without a warrant, according to an internal ICE legal analysis shared with 404 Media.

https://www.404media.co/inside-ices-tool-to-monitor-phones-in-entire-neighborhoods/

[–] chaospatterns@lemmy.world 2 points 2 days ago* (last edited 1 day ago)

I thought this was using SDKs embedded in apps and advertising platforms. This is a different threat model. You need to block ads and prefer using websites instead of apps which have more access to device info like the advertising ID.

If you've got an Android, go to Settings, search for ads, and find the advertising ID and delete the ID. It's a stable identifier that can be used to identify your phone.

Switch to more private browsers like Firefox for Mobile and install uBlock Origin.

EDIT: I'm not saying this will protect you against IMSI catchers or tower based drag nets. In addition to not bringing your phone, when you do go home you need an entirely different set of tools to protect yourself.

[–] Zangoose@lemmy.world 10 points 2 days ago

They can also use live location data in an emergency situation,also using a court ordered subpoena.

What qualifies as an "emergency situation"? I imagine that definition could be stretched pretty thinly

[–] unexposedhazard@discuss.tchncs.de 8 points 2 days ago* (last edited 2 days ago)

Yeah cell tower data is private just like your google search history is private. Which means absolutely not private. Also cops can (and do) use fake cell towers to make your phone connect to something that they have live access to.