1Malaysia Development Berhad (1Mdb) Scandal. The 1malaysia development berhad (1mdb) scandal: The 1mdb scandal has been described as one of the world's greatest financial scandals and declared by the united states . The assets that 1 malaysia development berhad (1mdb) has since acquired include 15. In september 2020, the alleged amount stolen from 1mdb was estimated to be us$4.5 billion and a malaysian government report listed 1mbd's outstanding debts to .