Apps on Apple and Android smartphones leak lots of users’ information to third parties, research has suggested.
Researchers from the Massachusetts Institute of Technology (MIT), Harvard, and Carnegie-Mellon universities studied 110 apps available on Google Play and the Apple App Store.
They found 73% of the Android apps shared users’ email addresses, and 47% of the iOS apps shared location data.
Privacy International said it was more evidence of how devices “betray us”.
The study, Who Know What About Me? A Survey of Behind the Scenes Personal Data Sharing to Third Parties by Mobile Apps, tested 55 of the most popular Android apps and the same number of iOS apps.