Project Zero investigated a popular Android phone, the Samsung Galaxy S6 Edge. We discovered and reported 11 high-impact security issues as a result. The majority of Android devices are not made by Google, but by external companies known as Original Equipment Manufacturers or OEMs. We wanted to see how difficult finding bugs would be, what type of bugs we would find and whether mitigations in AOSP would make finding or exploiting bugs more difficult. We chose the Samsung device as it is a recent high-end device with a large number of users.”]
Source: https://googleprojectzero.blogspot.com/2015/11/hack-galaxy-hunting-bugs-in-samsung.html