A US Department of Justice test of the CelleBrite UFED used by Michigan police found the device could grab all of the photos and video off of an iPhone within one-and-a-half minutes. The device works with 3000 different phone models and can even defeat password protections.
You don’t have to be arrested, or even suspected of a crime. Police are doing this during routine traffic stops, in evident violation of Fourth Amendment protections. So what might police glean from your phone? If you’re carrying an iPhone, a lot.
Apple is, without your consent or any warning labels, logging all of your iPhone’s location data and then transferring it over to your computer when you backup or sync your iPhone. The information is easily accessible — unencrypted and in a standard database format. (The option to encrypt is there, though I haven’t tested whether this option obscures your location data.)
Upshot? Any program you install or anyone you let on your computer could access this data, giving that program or that person full access to where you were and when you were there.