The security researcher Mohamed Baset discovered a vulnerability in Facebook that exposed email and other details of a page administrator. Facebook has paid out more than $880,000 for 400 vulnerability reports submitted by hackers. Researchers analyzed the source code of the email sent by the social network and discovered it includes the name of the administrator of the page and other info. Facebook acknowledged the issue and decided to award the expert $2,500 as part of its bug bounty program. The issue could represent a threat to the users privacy.”]
Source: https://securityaffairs.co/wordpress/69630/hacking/facebook-page-administrator.html