AP Photo

Last year, a researcher discovered that iPhones — among the world’s most popular electronic devices — were storing detailed, unencrypted information on their owners’ locations and uploading it to any computer they were connected to. Subsequent research revealed that both Apple iPhones and Google Android devices were sending detailed location information back to Apple and Google — and that in some cases, users didn’t know about it and even if they did, they had no way of stopping it.