For web development, the two major haskell frameworks (Yesod and Snap) are both designed with security as a major concern, and in general haskell libraries seem

For web development, the two major haskell frameworks (Yesod and Snap) are both designed with security as a major concern, and in general haskell libraries seem to take this stuff pretty seriously (I guess people who like haskell like safety, _and_ eval is not something that's too easy). As a more extreme example, this language/framework is designed to statically guarantee that you can't suffer from most web vulnerabilities - http://www.impredicative.com/ur/ http://www.impredicative.com/ur/ - but if you want any complicated libraries, they need to be C (or linked through a C shim), which may not be the most desirable.