He wrote facebook had paid more than 5 millions of bounty reward to the hackers in these 5 years. Joey mention that they had a great experience in solving the bug with the numerous researcher around the world.
Facebook had also added Whatsapp (instant messing service acquired by Facebook) to its bug bounty program, and `expanded payment options to include Bitcoin, and switched to an automated payment process so facebook can pay researchers faster.
In the first half on this year (Jan- June 2016), Facebook had received
- More than 9,000 reports in the first half of 2016.
- Paid a total of $611,741 to 149 researchers, bringing our cumulative five-year total to more than $5 million paid to more than 900 researchers.