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Source?
https://www.oxygen.com/crime-news/cell-phone-data-from-lori-...
Just stop carrying your phone. Problem solved.
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Phones don’t just use triangulation. Modern smartphones will also use GPS (A-GPS).
This is about asking the cell network where the phone is. This is not about asking the phone where the phone is.
In the US, E911 requires all phones to be able to report their physical location. Phone companies may use this ability to respond to police location requests. I don't know one way or another, but it seems likely.
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or they just triangulated using his cell phone, it can be very accurate in urban settings
Police need a warrant to get location data from your cell phone provider. No department is bothering with that for a welfare check unless the situation is really dire, and the process still takes a while to carry out. "Where do you think your brother is?" "Oh probably at XYZ's place" is a much more straightforward and common process.
if the information they gather is to be admissible in court as evidence against a person. Police do not need a warrant to save the life of a person.
Give up yer phones. Will it become illegal to be phoneless person, or will it just make such people into an untouchable caste?
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https://www.oxygen.com/crime-news/cell-phone-data-from-lori-...
Your "on demand" makes it read like they don't need to get a warrant whereas your link describes a missing-children investigation that had already made the national news, i.e., a situation in which getting a warrant would be very easy.
These patriot act type laws are just there to normalize their spying crimes in your eyes. Also to make people self censor themselves from criticizing their government.
No they don't prevent any sort of attacks because the attackers wouldn't be stupid enough to talk over their personal phones.
Let that sink in. They take away your privacy while not preventing any big attacks.
> But lawmakers agreed to the bill late Wednesday as Justice Minister Eric Dupond-Moretti insisted the bill would affect only “dozens of cases a year.” Technically he is not lying or naive, because any number, including large numbers like 66 million, can be expressed in units of dozens.
United States, couple years ago my friend in his mid-thirties was feeling depressed after his mom died. Came over to hang out, and wasn’t responding to his sisters calls. His sister called in a welfare check on him and suddenly I have three cops knocking at my front door. They ask for him by name, say he isn’t in trouble. I go get him; he asks “how did you know where I was?” and the cops say “we pinged your phone”. W…
Triangulation by cell tower is really, really accurate.
That's why something like MDT was added to 3GPP standards and emergency calls trigger a hard GPS fix.
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> the cops say “we pinged your phone”. What that entails exactly I have no clue. The cell phone infrastructure knows where your phone is. It has to in order for it to operate. The police routinely ask cell phone companies for locations of cell phones. Many (most?) not only won't require a warrant, but provide an official portal the police can use to conduct their queries without having to get a phone company employee…
Note that it is not just police. The core of GPS network, SS7 system, is more than 50 years old in this point. It is often exploited by authoritarian states, sometimes to the end to get human right activists and journalists murdered. https://attack.mitre.org/techniques/T1430/002/ Our crook friends in Israel sell this as a service https://privacyinternational.org/examples/3429/nso-group-off...
You must mean the phone network, because GPS doesn't run on SS7.