Weaknesses in the design have been found that ....
Malbolge was specifically designed to be almost impossible to use, via a counter-intuitive 'crazy operation', base-three arithmetic and self-altering code.[1] It builds on the difficulty of earlier, challenging esolangs (such as Brainfuck and Befunge), but takes this aspect to the extreme, playing on the entangled histories of computer science and encryption. Weaknesses in the design have been found that make it possible (though still very difficult) to write useful Malbolge programs.