I don't mean to be rude, but you clearly don't understand this subject. Databases leak, not least of all due to human errors. Half the effort in computer securi

I don't mean to be rude, but you clearly don't understand this subject. Databases leak, not least of all due to human errors. Half the effort in computer security goes to preventing the leaks, and the other half goes to mitigating the consequences of such leaks. Hashing the passwords, salting the hashes, the entire md5/sha/pbkdf/bcrypt/scrypt debacle, all of these things are there only to mitigate the consequences of a database leak that is presumed to happen at some time in the future.