Need to know how to make this bug ~!

guys there is e-mail bug, which make u can change any one e-mail without the sequrity answer /yea but can any one say to me how to make this bug ?

i dont think this can happen and if this exist this wouldnt be bug

yes some one stealed my acc with this bug xD so i want to know how to make this bug

ur acc got hacked by smth u downloaded no bug..