Re: Curious...
GPS elevation data is consistent, if not accurate, and therefore can be used for assumptions.
Agree that all sensor information should have permission, and frankly should be more prominent in advance of app installation. Why would a torch app need ANY sensor information, for example, its either ad related or malicious (fine line sometimes...)
data leakage of any kind is likely to result in some kind of matching data attack, although it is also likely that this will become a de-facto issue of having a smartphone at all. Organisations that you permit e.g. Strava can still have the TLA organisations tapping them on the shoulder or subverting their feeds regardless. Probably easier for them to simply open their own advertising shops though in a similar vein to creating their own TOR nodes...
Most people outside the reg forums don't really know what tinfoil is for, let alone making hats out of it and broadcast their every movement, purchase and bank balances to all and sundry.
If you really want to stay relatively hidden, the old phones are your friend, without all the clever sensors. (as well as being very cheap)
Biting the hand that feeds IT
