Can smartphones be tracked when powered down?

TheNiceGuy

Golden Member
Dec 23, 2004
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I’m particularly interested in areas of the world that don’t have the same privacy rights as the west. I imagine it’s very easy for the government to do this when it’s powered on, but not sure if it’s technically possible if it’s been powered off. I have an iPhone 8+ if it matters.
 

UsandThem

Elite Member
May 4, 2000
16,068
7,383
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A. What are you planning to do? ;)

B. I think from what I have seen watching crime documentaries like The First 48, 20/20, etc, when the phone is powered off, there's no way to track a person.

But honestly I wouldn't be surprised if an agencies like the NSA, CIA, or FBI found a way to do so (just like they have with smart TVs even when they're off). On a related note, I would never have a listening device like Alexa devices sitting around in our house, but the younger generation (like my teenagers) love using their voice to control everything like their phones, Xbox One consoles, and speakers.

https://www.usatoday.com/story/tech...ust-how-risky-smart-tv-phone-fridge/98865598/
 

paperfist

Diamond Member
Nov 30, 2000
6,539
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www.the-teh.com
A. What are you planning to do. ;)

B. I think from what I have seen watching crime documentaries like The First 48, 20/20, etc, when the phone is powered off, there's no way to track a person.

But honestly I wouldn't be surprised if an agencies like the NSA, CIA, or FBI found a way to do so (just like they have with smart TVs even when they're off). On a related note, I would never have a listening device like Alexa devices sitting around in our house, but the younger generation (like my teenagers) love using their voice to control everything like their phones, Xbox One consoles, and speakers.

https://www.usatoday.com/story/tech...ust-how-risky-smart-tv-phone-fridge/98865598/

So TVs are in standby mode when powered off? I wasn’t aware they were being used as listening devices. Nice!
 

TheNiceGuy

Golden Member
Dec 23, 2004
1,569
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How about if the device is in “airplane mode” or what have you?
Additionally, in either power off or airplane mode, if the device itself was analyzed afterwards, could it be determined where it had been during that time?
 

luv2liv

Diamond Member
Dec 27, 2001
3,500
94
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you sure you wanna trust an online forum instead of asking the CIA directly?
my best answer is to pull the battery out. and this is one of the reason i still have phones with yank-able batteries.
 

WelshBloke

Lifer
Jan 12, 2005
32,897
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How about if the device is in “airplane mode” or what have you?
Additionally, in either power off or airplane mode, if the device itself was analyzed afterwards, could it be determined where it had been during that time?
Youre still pinging cell towers in aircraft mode so I presume your position can be tracked pretty accurately from that.
 
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WelshBloke

Lifer
Jan 12, 2005
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Plus I wouldn't say the West has that good privacy rights.(at least ones that are respected anyway!)
 

13Gigatons

Diamond Member
Apr 19, 2005
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You should just make the assumption that the FBI, CIA, ATF, NSA are pretty much tracking everyone with a smart phone.

I saw a TV show that had the NSA recording lawyers talking even though their phones were off and another guy would wrap his in a towel and place it in the microwave.
 

WelshBloke

Lifer
Jan 12, 2005
32,897
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You should just make the assumption that the FBI, CIA, ATF, NSA are pretty much tracking everyone with a smart phone.

I saw a TV show that had the NSA recording lawyers talking even though their phones were off and another guy would wrap his in a towel and place it in the microwave.
You could do that with a hacked phone that plays possum when you turn it off. Recording and transmitting sound doesn't happen with a phone turned off. We'd have super battery life if someone worked out how to do that!
 

bononos

Diamond Member
Aug 21, 2011
3,930
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I’m particularly interested in areas of the world that don’t have the same privacy rights as the west. I imagine it’s very easy for the government to do this when it’s powered on, but not sure if it’s technically possible if it’s been powered off. I have an iPhone 8+ if it matters.
Yes the phone is dead when its turned off, can't imagine how its going to be tracked.

Youre still pinging cell towers in aircraft mode so I presume your position can be tracked pretty accurately from that.
I don't think thats right. Do you have a source for that?
 

Raduque

Lifer
Aug 22, 2004
13,140
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I don't think thats right. Do you have a source for that?
I think even in airplane mode you still have to be able to dial 911. Which means it is still pinging towers, or at least it will if you dial an emergency number.
 

bononos

Diamond Member
Aug 21, 2011
3,930
187
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I think even in airplane mode you still have to be able to dial 911. Which means it is still pinging towers, or at least it will if you dial an emergency number.
Thats because the phone is taken out of airplane mode automatically by Android/IOS to be able to make a call.
 

ElFenix

Elite Member
Super Moderator
Mar 20, 2000
102,397
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airplane mode just means TX has to be off. it can still listen.