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iOS 8 randomises the MAC address while scanning for WiFi networks

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Re: iOS 8 randomises the MAC address while scanning for WiFi networks

#3
post #2

This is Apple forcing the in-store analytics companies like Euclid to use iBeacon rather than WiFi. With the market share numbers the way they are, though, for all but the highest-end stores what Android does matters more.

Yeah, I would guess that you'd get a pretty good sample without any iOS8 devices included.

It's still a good thing IMO.

Re: iOS 8 randomises the MAC address while scanning for WiFi networks

#4
post #2

This is Apple forcing the in-store analytics companies like Euclid to use iBeacon rather than WiFi. With the market share numbers the way they are, though, for all but the highest-end stores what Android does matters more.

Despite this it does allow apple to enable customers to choose by turning bluetooth on/off, and not forcing them to disable wifi to avoid tracking (am I a minority that have bluetooth off by default?).

Re: iOS 8 randomises the MAC address while scanning for WiFi networks

#6
If this becomes the trend (which in my opinon would be nice) it will become a big problem for companies that specialise in customer tracking e.g. for supermarkets and big department stores. Previously it was quite easy to track a customer, how long he or she spends time in the store, which floors he or she visits, etc. by putting up dummy WiFI-networks that the customers phones find by giving out their MAC-addresses.

Re: iOS 8 randomises the MAC address while scanning for WiFi networks

#7
post #6

If this becomes the trend (which in my opinon would be nice) it will become a big problem for companies that specialise in customer tracking e.g. for supermarkets and big department stores. Previously it was quite easy to track a customer, how long he or she spends time in the store, which floors he or she visits, etc. by putting up dummy WiFI-networks that the customers phones find by giving out their MAC-addresses.

What stops them from switching to tracking via the hardware address of the cellular radio?

Re: iOS 8 randomises the MAC address while scanning for WiFi networks

#8
It's about time. I quite intentionally keep my wifi mode off for this reason until I intend to use a network. No doubt someone is tracking and selling every transmission you make.

FWIW, once you read about a PoC of an attack/tracking vector on HackaDay, you can be sure it's already in production tracking you.

http://www.tomsguide.com/us/how-to-bluesniper-pt1,review-408...

https://www.schneier.com/blog/archives/2008/04/tracking_vehi...

Re: iOS 8 randomises the MAC address while scanning for WiFi networks

#10

I hope it still connects with the real MAC address. Otherwise that could get very problematic.

They could make it optional, but having such a technical option wouldn't be Apple's style. Perhaps it could generate a new random MAC address for each saved network, which would be thrown away when you use the 'Forget network' command.
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