Your name, address and email are all passed on when purchasing Android apps, according to a new report.
The "flaw", discovered by Australian app developer Dan Nolan, seems to be intentional, News.com.au reported.
"Let me make this crystal clear, every app purchase you make on Google Play gives the developer your name, suburb and email address with no indication that this information is actually being transferred," Nolan was quoted as saying.
The information would allow a developer to track down and harrass customers who have given negative reviews, Nolan said, while also opening the door for malware.
"I can't see any way to opt out of providing that information and it seems to be a feature of the Google checkout process."
Google's Play Store has surpassed 25 billion app downloads, with over 700 000 applications available for purchase.