http://wccftech.com/android-security-play-store-bug-bounty/

While Google may have done a lot to improve user security offering solutions that are being used by the entire industry (for example, its Safe Browsing protections), its Android operating system is widely considered as the most insecure popular operating system. The number of users that Android has attracts more efforts from cybercriminals, and the fragmentation adds in to the troubles. However, many security problems come through the apps – not the OS – even if installed from Google’s Play Store.

The search giant has continued to fortify Play Store against criminals’ tricks, but the problem has also continued to persist. Google has finally announced a public bug bounty program focused on finding security vulnerabilities in mobile apps hosted in its marketplace. Right now, the company is offering $1,000 in reward for RCE (remote code execution) vulnerabilities and corresponding PoCs (Proof of Concepts) that work on Android 4.4 or higher.