Google, which has already paid security researchers over $15 million since launching its bug bounty program in 2010, today expanded its Android Security Rewards program. Most notably, the company is introducing a top prize of $1 million. The previous top prize was $200,000. That’s technically a quintupling, although the maximum reward could be even higher. Google is launching a 50% bonus for exploits found on specific developer preview versions of Android, meaning the top reward could net you $1.5 million.