User blog comment:MisterWoodhouse/Introducing the Fandom Bug Bounty Program/@comment-36206809-20190724204423/@comment-39117959-20190724234825

They asked the good hackers (AKA “white hat hackers”) to find security vulnerabilities in D&D Beyond, Fandom and Gamepedia before the bad hackers (AKA “Black hat hackers”) find it and hack the website (and sabotage the the website or leak users informations)

They pay the good hacker who find security vulnerability amount of money depend on the severity of the security vulnerability.