I don’t work there, but from talks I’ve gone to I believe their Scaled Abuse team uses (or at least used to use) Haskell[1] along with the library Haxl[2] 1. h

I don’t work there, but from talks I’ve gone to I believe their Scaled Abuse team uses (or at least used to use) Haskell[1] along with the library Haxl[2] 1. https://engineering.fb.com/2015/06/26/security/fighting-spam-with-haskell/ https://engineering.fb.com/2015/06/26/security/fighting-spam... 2. https://engineering.fb.com/2014/06/10/web/open-sourcing-haxl-a-library-for-haskell/ https://engineering.fb.com/2014/06/10/web/open-sourcing-haxl...