Researchers from Intel, Penn State, and Duke teamed up to study just how secure the apps in the Android market are. Specifically, they wanted to see what private data was collected by apps, and what the apps then did with said data. The results: 15 out of 30 "popular" applications sent geographic data, 7 sent unique hardware information, and a few sent info such as phone number and SIM serial to developers. Scary stuff indeed.
This isn't the first time we've heard that Android apps are insecure - in late July, Lookout released similar findings. However, Taintdroid takes things a bit further - albeit, from a smaller sample.