Google Play is introducing the Google Play Security Reward Program to incentivize security research into popular Android apps available on Google Play. The program is limited to a select number of developers at this time to get initial feedback. All developers will benefit when bugs are discovered because we will scan all apps for them and deliver security recommendations to the developers of any affected apps. For more information, visit the Play security Reward Program on HackerOne.com. For more info, visit Google Play.com/HackerOne.”]
Source: https://security.googleblog.com/2017/10/introducing-google-play-security-reward.html