What is the difference between a non-secure random number generator and a secure random number generator?

Question

As the title says: What is the difference between a non-secure random number generator and a secure random number generator?

Answer 1

It probably depends on the context, but when you are comparing them like this, I'd say "random number" is a pseduo random number and a "secure random number" is truly random. The former gives you a number based on a seed and an algorithm, the other on some inherintly random function.