Bingo is a POC for auto-suggestion guessing attack. This attack enables a man in the middle to guess a search query made by the user, based upon the packet sizes returned by the auto-suggestion mechanism. Even the project name is Bingo, the POC is targeted for duckduckgo.
https://github.com/ohadcn/bingo && cd bingo
(you change your proxy first python proxy.py, then you can run duckduckgo.py, req.php & worsdict.py)