https://medium.freecodecamp.org/responsible-disclosure-how-i-could-have-hacked-all-facebook-accounts-f47c0252ae4d
ref - https://www.reddit.com/r/ReverseEngineering/comments/80cjt9/i_figured_out_a_way_to_hack_any_of_facebooks_2/
origin - https://www.pipiscrew.com/2018/02/he-figured-out-a-way-to-hack-any-of-facebooks-2-billion-accounts-and-they-paid-me-a-15000-bounty-for-it/ he-figured-out-a-way-to-hack-any-of-facebooks-2-billion-accounts-and-they-paid-me-a-15000-bounty-for-it