this post was submitted on 10 Feb 2024
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The problem is they are banning a device that doesn't solve the issue at all except if you have a car from before the 90s. The tools being used for this are custom made with a much larger range. Maybe they should ban smartphones too since people are using them to detect laptops in cars to break into since they are being stupid about it.
How do you use a phone to detect a laptop in a car? If it’s on, sure I get it but if the laptop is asleep or off I can’t see how a phone will detect it?
Article said they were using Bluetooth and a app on play store / app store I assume the app measures the signal strength to determine the proximity to the devices. Maybe some laptops don't turn off Bluetooth in their sleep state or people just weren't putting their laptops to sleep? Could pickup tablets or phones forgotten in cars too.
As he said, that only works if the device is on, which would be really odd in a car. I'm not aware of any that keep comms on in sleep, since those are typically high power draw.
There are various sleep modes and it looks like Bluetooth can be active during some of them.
https://learn.microsoft.com/en-us/windows-hardware/design/device-experiences/bluetooth-power-management-for-modern-standby-platforms
Most MacBooks keep Bluetooth on when in sleep mode. There isn’t even a setting to stop it, the only option is to manually turn Bluetooth off before closing the lid or to use 3rd party software to automate turning it off.